May Half Marathons
Trail Half Marathons (T)
Official Walker Friendly Half Marathons in May
18:32 mile / 4 Hour Minimum course time limit= (W)
Symbol only applies to half marathon events
Does NOT meet the Walker Friendly 4 hour minimum (18:32 / mi) = Not Walker Friendly (NWF)
Date
May 3, 2025
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May 3, 2025
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May 3, 2025
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May 3, 2025
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May 2, 2026
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May 2, 2026
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May 3, 2025
May 2, 2026
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May 3, 2025
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May 3, 2025
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May 2, 2026
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May 3, 2025
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May 3, 2025
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May 3, 2025
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May 3, 2025
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May 2, 2026
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May 3, 2025
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May 3, 2025
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May 2, 2026
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May 3, 2025
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May 3, 2025 (W)
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May 3, 2025 (NWF)
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May 2, 2026 (NWF)
Potomac River Marathon & Half Marathon 2025 Registration
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Seashore 1/2 Marathon Classic, 5k & Relay
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Boise River Marathon, Half Marathon, 10k, 5k
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Lincoln Way Half Marathon and 10k
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One America 500 Festival Mini Marathon (half marathon)
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IronHorse Races Half Marathon, 10k, 5k
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TopCity Half Marathon Half Marathon​
Maine Coast Half Marathon & 5k
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Run for the Lakes Half Marathon, 10k, 5k
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Drink MO Wine Half Marathon, 10k, 5k
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Shiprock Marathon & Half Marathon 2026 Registration
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Thermofisher Scientific Grand Island Half Marathon 2025 Registration
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The Less Popular Brooklyn Half Marathon 2025 Registration
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Neuse River Bridge Half Marathon, 10k, 5k
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Hearts with a Mission SuperHero Run Half Marathon, 10k, 5k
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May the Fourth Run Half Marathon, 10k, 5k
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Bishop Events Run for the Wounded Half Marathon, 10k, 5k
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Never Say Never Half Marathon​
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Wisconsin Marathon & Half Marathon & 5k
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La Crosse Marathon, Half Marathon, 5k Festival
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RC2 Community Runs Half Marathon, 10k, 5k
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City
State
Washington
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Lewes
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Boise
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Frankfort
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Indianapolis
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Riceville
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Topeka
Wells
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Nisswa
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Augusta
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Shiprock
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Grand Island
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Brooklyn
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Ne Bern
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Gold Hill
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Provo
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Farmington
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Triangle
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Tieton
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Kenosha
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La Crosse
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Ripon
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Fish Creek
D.C.
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Delaware
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Idaho
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Illinois
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Indiana
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Iowa
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Kansas
Maine
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Minnesota
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Missouri
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New Mexico
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New York
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New York
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North Carolina
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Oregon
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Utah​
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Utah
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Virginia
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Washington
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Wisconsin
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Wisconsin
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Wisconsin
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Wisconsin
May 4, 2025
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May 3, 2026
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May 3, 2026
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May 4, 2025
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May 4, 2025
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May 4, 2025
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May 3, 2026 (W)
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May 4, 2025
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May 3, 2026
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May 4, 2025
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May 4, 2025 (NWF)
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May 3, 2026
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May 4, 2025
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May 3, 2026
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May 4, 2025
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May 3, 2026
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May 4, 2025
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May 3, 2026
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May 4, 2025
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May 3, 2026
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May 3, 2026
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May 4, 2025
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May 4, 2025
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May 3, 2026
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May 3, 2026
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May 4, 2025
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May 5, 2024
May 5, 2024 (T)
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May 3, 2025
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May 3, 2025
May 3, 2026
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May 5, 2024
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May 4, 2025
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May 3, 2026 (NWF)
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May 3, 2026
Totem to Totem Half marathon 2025 Registration
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The OC Marathon, Half Marathon & 5K
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Windsor Half Marathon, 10k, 5k
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Avenue of the Giants Marathon, Half Marathon
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Colorado Marathon, Half Marathon, 10k, 5k
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National Women's Half Marathon & 8k
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Palm Bluff Trail Race 50k, 1/2 Marathon, 12k 2025 Registration
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Chicagoland Spring Marathon & Half Marathon 2025 Registration
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Des Moines Women's Half Marathon
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Prairie Fire Spring Half Marathon 2025 Registration
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Frederick Running Festival Half Marathon, Relay, 5k
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Cranky Crab Half Marathon, 10k, 5k
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YuKan Run Twin Lights Half Marathon (3 hr course time limit)
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Go Girl Run Columbia Half Marathon & 5k
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Lincoln Marathon & Half Marathon
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Run for the Zoo Half Marathon, 10k, 5k, 1mi
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Hudson Valley Marathon at the Walkway, Half Marathon, 10k, 5k
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The Jovia Long Island Marathon & Half Marathon
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The Bridge Run Half Marathon & 5k
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Flying Pig Marathon, Half Marathon, 10k, 5k
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Cinco De Mayo Half Marathon, 10k, 5k
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Dick's Pittsburgh Marathon, Half Marathon & Relay
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Providence Marathon, Half Marathon, 5k​
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Wildflower Marathon, Half Marathon & 8mi
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Shelburne Athletic Club Half Marathon, 10k, 5k
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Grayson Highlands Trail Runs Half Marathon & 50k
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Snohomish Women's Run Half Marathon & 10k
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Tacoma City Marathon, Half Marathon (3hr course cut off) & 5k
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Ketchikan
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Costa Mesa
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Oakland
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Windsor
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Weot
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Visalia
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Fort Collins
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Longmont
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Washington
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Osteen
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Schaumburg
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Des Moines
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Wichita
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Frederick
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Seekonk
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Gloucester
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Columbia
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Lincoln
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Rye Beach
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Albuquerque
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Highland
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East Meadow
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Binghamton
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Cincinnati
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Portland
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Pittsburgh
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Providence
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Bastrop
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Shelburne
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Bedford
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Grayson Highlands
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Everett
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Kirkland
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Tacoma
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Eau Claire
Alaska
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California
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California
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California
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California
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California
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Colorado
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Colorado
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D.C.
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Florida
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Illinois
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Iowa
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Kansas
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Maryland
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Massachusetts
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Massachusetts
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Missouri
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Nebraska
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New Hampshire
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New Mexico
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New York
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New York
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New York
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Ohio
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Oregon
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Pennsylvania
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Rhode Island
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Texas
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Vermont
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Virginia
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Virginia
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Washington
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Washington
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Washington
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Wisconsin
May 9, 2025 (W)
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May 9, 2025
May 9, 2026
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May 9, 2026
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May 11, 2024
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May 10, 2025
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May 10, 2025 (T)
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May 9, 2026 (NWF)
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 9, 2026
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May 10, 2025
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May 9, 2026
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May 9, 2026
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May 10, 2025
May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025 (W
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 11, 2024
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May 10, 2025
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May 9, 2026
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May 10, 2025
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May 11, 2024
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 10, 2025
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May 11, 2024 (NWF)
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May 9, 2026
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May 10, 2025
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May 10, 2025
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May 11, 2024
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May 10, 2025
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May 10, 2025
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May 9, 2026
Vacation Races Yosemite Half Marathon
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Hacienda Hills Run Marathon, Half, 50k, 9mi, 10k, 5k
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Mermaid Run Mare Island Half Marathon, 10k, 5k
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Muir Woods Marathon, Half Marathon, 7mile
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Grizzly Peak Trail Marathon, Half Marathon, 50k, 30k, 10k
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Santa Barbara Wine Country Half Marathon & Relay
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BWR Mother's Day Long Beach Half Marathon, 15k, 10k, 5k
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Nitro Trail Half Marathon, 10k, 5k
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Carbon Valley Half Marathon, Relay, 5k and Fun Run
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Valkyrie Trail Race 50k, Marathon Half Marathon, 4mi
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Race4Warriors Half & Full Marathon Challenges & 5k
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Aloha Racing Ho'omau Half Marathon, 10k, 5k
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Starved Rock Country Marathon & Half Marathon
Bridge the Gap to Health Half Marathon, 10k, 5k
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Friends of Yellow River State Forest Trail Run Half Marathon, 10k, 5k
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Kansas City Corporate Challenge Half Marathon
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Running with the Cows Half Marathon
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Mercy Health Paducah Iron Mom Half Marathon, Relay, 5k
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ECTA Spring for the Trails Half Marathon
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MM Prairie Series Marathon, Half, 50/10/5k (Day 2)
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New England Challenge II Granite State Marathon, Half Marathon
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Happy Half at Holiday Valley Half Marathon & 5k
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Rockapulko Mother's Day Half Marathon & 5k 2024 Registration
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514 Bruce Smith Celebrity 1/2 Marathon& 5k
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Sri Chinmoy Half Marathon & 5k
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Jump Off Rock Half Marathon & 10k
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Charity Chase Half Marathon 2025 Registration
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Run on the River Half Marathon, 10k, 5k
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Happy Girls Half Marathon, 5k, 1.5k
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Mountain Railroad Half Marathon
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Scenic City Trail Marathon, 1/2 Marathon
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CrossFit Pistol Creek Half Marathon
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​
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Vigor Big Cottonwood Canyon Half Marathon
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Bishop Events Spring Burke Lake Half Marathon, 10k, 5k
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Snohomish Women's Run Half Marathon, 10k, 5k
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Miami
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Fairlee
Oklahoma
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Vermont
Bass Lake
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San Jose
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Vallejo
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Stinson Beach
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Berkley
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Santa Barbara
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Long Beach
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Pinole
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Firestone
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Colorado Springs
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Highlands Ranch
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Lewes
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Ewa Beach
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Ottawa
Quincy
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Harpers Ferry
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Overland Park
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Bucyrus
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Paducah
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Ipswich
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Maple Grove
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St. Joseph
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Nashua
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Ellicottville
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Rockaway
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Buffalo
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New York
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Hendersonville
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Hickory
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Astoria
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Bend
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Champoeg
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Everett
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Chattanooga
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Viola
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Maryville
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Vernal
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Paradise
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Cottonwood Heights
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Fairfax Station
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Friday Harbor
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Snohomish
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White Sulphur Springs
California
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California
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California
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California
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California
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California
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California
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California
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Colorado
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Colorado
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Colorado
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Delaware
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Hawaii
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Illinois
Illinois
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Iowa
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Kansas
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Kansas
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Kentucky
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Massachusetts
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Minnesota
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Missouri
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New Hampshire
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New York
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New York
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New York
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New York
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North Carolina
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North Carolina
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Oregon
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Oregon
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Oregon
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Pennsylvania
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Tennessee
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Tennessee
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Tennessee
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Utah
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Utah
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Utah
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Virginia
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Washington
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Washington
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West Virginia
May 11, 2025
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May 11, 2025
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May 11, 2025
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May 11, 2025
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May 11, 2025 (W)
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May 11, 2025
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May 11, 2025
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May 11, 2025
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May 11, 2025
May 10, 2026
May 10, 2026
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May 11, 2025
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May 11, 2025
The Suasquatch Scramble Half Marathon, 10k, 5k
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Run for the Rose Half Marathon, 15k, 10k, 5k
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BWR Mother's Day Van Nuys Half Marathon, 15k, 10k, 5k
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Quad Cities Distance Classic Half Marathon & 5k 2025 Registration
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MM Prairie Series Marathon, Half Marathon, 50/10/5k (Day 3)
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New England Challenge II Pine Tree Marathon, Half Marathon
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Cambridge Crab Run Half Marathon & 5k
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WMASS Mother's Day Half Marathon
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CityTri Brooklyn Mother's Day Half Marathon, 10k, 5k
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Mother's Day Run for the Roses Half Marathon, 10k, 5k
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Run this Mother Women's Only 1/2 Marathon & 5k
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CRC Mother's Day Half Marathon & 5k
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Oakland
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Long Beach
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Van Nuys
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Rock Island
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Hiawatha
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Portland
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Cambridge
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Whately
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Brooklyn
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Coplay
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San Antonio
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Fort Worth
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Salisbury
California
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California
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California
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Illinois
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Kansas
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Maine
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Maryland
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Massachusetts
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New York
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Pennsylvania
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Texas
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Texas
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Vermont
May 12, 2025
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May 12, 2025
Mainly Marathons Prairie Series Marathon, Half, 50/10/5k day 4
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Red Island State Marathon, Half Marathon New England Challenge II
S. Sioux City
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Warwick
May 13, 2025
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May 13, 2025
Sioux City
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Westfield
Nebraska
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Rhode Island
Iowa
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Massachusetts
May 14, 2025
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May 14, 2025
Nutmeg State Marathon, Half Marathon New England Challenge II
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Mainly Marathons Prairie Series Marathon, Half, 50/10/5k day 6
Hartford
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Baltic
Connecticut
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South Dakota
May 15, 2025
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May 15, 2025
Mainly Marathons Prairie Series Marathon, Half, 50/10/5k day 7
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Mainly Marathons Prairie Series Marathon, Half, 50/10/5k day 7
Breckenridge
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Whapeton
May 16, 2025
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May 16, 2025
Mainly Marathons Prairie Series Marathon, Half, 50/10/5k day 8
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Mainly Marathons Prairie Series Marathon, Half, 50/10/5k day 8
Breckenridge
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Whapeton
Minnesota
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North Dakota
Minnesota
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North Dakota
May 16, 2026
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May 16, 2026
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 16, 2026
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 18, 2024
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May 18, 2024
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May 17, 2025
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May 16, 2026
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May 17, 2025
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May 16, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 16, 2026
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May 17, 2025 (NWF)
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May 16, 2026
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May 18, 2024
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
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May 17, 2025
Trail Run at Sly Park 50k, 20mi, 13.1mi, 10mi, 5k
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La Jolla Half Marathon & La Jolla Shores 5K
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Bee Happy Run Half Marathon, 15k, 10k, 5k
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Sutter Buttes Spirit Mountain Run 5k, 10k & Half Marathon
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Trail Quake Half Marathon, 10k, 5k
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Endure Trail Runs Half Marathon & 10k
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Cartersville Half Marathon & 5k
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Famous Idaho Potato Marathon & Half Marathon
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Dances with Dirt Gnaw Bone Marathon, Half, 50mi, 50k, 10k
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Run for Her Life Half Marathon & 5k
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Run the Bluegrass America's Prettiest Half Marathon
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St. Michaels Running Festival Half Marathon, 10k, 5k
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Wheatlake Festival of Races Half Marathon & 5k
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Go Girl Run Kansas City Half Marathon & 5k
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Kickin Assphault Half Marathon, 10k, 1mi
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Whitefish Marathon, Half Marathon, 5k
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Silver State 50k, 50-Miler & Trail Half Marathon
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Thousand Islands Half Marathon, 10k
​
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New River Marathon & Half Marathon
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Spring Race Great Guernsey Trail Half Marathon, 10k, 5k
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Lion Heart Half Marathon, 2 Person Relay and 5k
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Crush Cancer Run Half Marathon, 10k, 5k
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Mountains to Mainstreet Half Marathon & 5k
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Dash Around Kampeska 1/2 Marathon and 1/2 Marathon Relay
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Little River Rush Half Marathon
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Tacos y Cerveza Trail Run Half Marathon, 10k, 5k
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Fiesta De Mayo Half Marathon, 10k, 5k
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Ogden Marathon & Half Marathon
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Timp Trail Marathon & Half Marathon
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​
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Run Like a Girl Bellingham Half Marathon
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Harpers Ferry Half Marathon, 5k & Kids Run
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Madeline Island Marathon & Half Marathon
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Pollock Pines
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La Jolla
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Santa Monica
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Sutter
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Saratoga
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Divide
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Cartersville
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Boise
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Nashville
​
Newton
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Lexington
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St. Michael
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Big Rapids
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Kaiser
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Kansas City
​
Great Falls
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Whitefish
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Reno
​
Wellesley Island
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Brooklyn
​
Todd
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Cambridge
​
Woodward
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Terrebone
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Greenville
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Watertown
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Maryville
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Fort Worth
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Irving
​
Ogden
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Orem
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Sevier
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Derby
​
Bellingham
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Harpers Ferry
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La Pointe
​
Woodville
California
​
California
​
California
​
California
​
California
​
Colorado
​
Georgia
​
Idaho
​
Indiana
​
Iowa
​
Kentucky
​
Maryland
​
Michigan
​​
Missouri
​
Missouri
​
Montana
​
Montana
​
Nevada
​
New York
​
New York
​
North Carolina
​
Ohio
​
Oklahoma
​
Oregon
​
South Carolina
​
South Dakota
​
Tennessee
​​
Texas
​
Texas
​
Utah
​
Utah
​
Utah
​
Vermont
​
Washington
​
West Virginia
​
Wisconsin
​
Wisconsin
May 18, 2025
​
May 18, 2025
​
May 18, 2025
​
May 17, 2026
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May 18, 2025 (NWF)
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May 17, 2026
​
May 18, 2025
May 17, 2026
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May 18, 2025
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May 18, 2025
​
May 18, 2025
​
May 19, 2024
​
May 18, 2025
​
May 17, 2026 (NWF)
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May 19, 2024
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May 17, 2026 (W)
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May 17, 2026
​
May 18, 2025
​
May 18, 2025
​
May 18, 2025
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May 18, 2025
​
May 18, 2025 (T)
​
May 18, 2025
​
May 17, 2026
​
May 18, 2025
The Whiskey Run Huntsville Half Marathon & 5k
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Elite Sports Seaside Marathon, Half Marathon, 10k, 5k
Venice Beach Half Marathon & 5k
Denver Colfax Marathon & Half Marathon
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​
Life Time Chicago Spring Half Marathon & 10k
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Carderock Running Festival Half Marathon & 5k
​
MountainOne Steel Rail Marathon, Half Marathon, 8k
​
Armed Services Marathon, 1/2 Marathon, 5k
​
Med City Marathon, Half Marathon, 20mi, 5k
​
Superhero Half Marathon & Relay
​
CityTri The Jersey City Spring Half, 10k, 5k
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Soul Ryeders Half Marathon & 5k
​
NCRC Classic Half Marathon & 10k
​
Cleveland Marathon, Half Marathon & 10k
​
Cottage Grove Half Marathon & 10k Run/Walk
​
​
​
Sioux Falls Skedaddle Half Marathon
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Marine Corps Historic Half Marathon
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Fountainhead Half Marathon & 10k Trail Run
​
Windermere Marathon, Half Marathon, 10k, 5k
​
Reflection Run Half Marathon, 10k, 5k
​
Madison
​
Ventura
​
Los Angeles
​
Aurora
​
Mystic
​
Chicago
​
Carderock
Westport
​
Pittsfield
​
Grand Haven
​
Rochester
​
Morristown
​
Jersey City
​
Rye
​
Cary
​
Cleveland
​
Cottage Grove
​
Lanesboro
​
East Providence
​
Sioux Falls
​
Fredericksburg
​
Fairfax Station
​
Spokane
​
Washougal
​
Olympia
Alabama
​
California
​
California
​
Colorado
​
Connecticut
​
Illinois
​
Maryland
Massachusetts
​
Massachusetts
​
Michigan
​
Minnesota
​
New Jersey
​
New Jersey
​
New York
​
North Carolina
​
Ohio
​
Oregon
​
Pennsylvania
​
Rhode Island
​
South Dakota
​
Virginia
​
Virginia
​
Washington
​
Washington
​
Washington
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 23, 2026
​
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 23, 2026
​
May 23, 2026
​
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 23, 2026
​
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 24, 2025
​
May 23, 2026
​
May 24, 2025
​
May 23, 2026
Trent Waldron Half Marathon & 10k Registration
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Prince of Wales Island Half Marathon & Relay
​
Armed Forces Run to Remember Half Marathon
​
Placerville Path Memorial Day Run
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Hamden Hills Half Marathon & 5k
​
Redfish Lake Lodge Half Marathon, 10k, 5k
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Red Cedar Trail Half Marathon at Giant City State Park
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Bayshore Marathon, Half Marathon, 10k
​
Stillwater Half Marathon, 10k, 5k
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Beaverhead Marathon & Half Marathon
​
Lake City Running Festival 1/2 Marathon, 10k, 5k, Relay
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NYC Memorial Day Half, 10k, 5k
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Eastern Oregon Half Marathon, 10k, 5k
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Stumptown Trail Runs 50k & Half Marathon
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Great American River Run Half Marathon & 5k
​
Running the Distance Texas Triple 26.2 & 13.1 (day 1)
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Bishop Events EOD Warrior Foundation Spring Memorial Half, 10k, 5k
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Ogden Newspaper Half Marathon Classic
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Salute the Troops Half Marathon
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Anchorage
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Craig
​
Concord
​
Placerville
​
Hamden
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Stanley
​
Makanda
​
Manhattan
​
Traverse City
​
Stillwater
​
Dillon
​
Plattsburgh
​
Brooklyn
​
Medina
​
Spray
​
Portland
​
Memphis
​
Dallas
​
Springfield
​
Wheeling
​
Fon Du Lac
​
Cedarburg
Alaska
​
Alaska
​
California
​
California
​
Connecticut
​
Idaho
​
Illinois
​
Kansas
​
Michigan
​
Minnesota
​
Montana
​
New York
​
New York
​
Ohio
​
Oregon
​
Oregon
​
Tennessee
​
Texas
​
Virginia
​
West Virginia
​
Wisconsin
​
Wisconsin
May 25, 2025
May 25, 2025
​
May 25, 2025
​
May 25, 2025
​
May 24, 2026 (NWF)
May 25, 2025
​
May 25, 2025
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May 25, 2025
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May 25, 2025
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May 25, 2025
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May 25, 2025
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May 24, 2026
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May 25, 2025
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May 25, 2025
Bishop Events Spring Georgetown 5k & Half Marathon
Hibiscus Half Marathon, 15k & 5 Miler
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Hometown Half Marathon, 10k, 5k Des Moines
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Boston's Run to Remember Half Marathon (No Walkers Allowed on Course)
Buffalo Marathon, Half Marathon & Relay
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Charlie Horse Trail Half Marathon
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Badass Texas Half Marathon, 10k, 5k
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Hometown BRC Half Marathon, 10k, 5k
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Running the Distance Texas Triple 26.2 & 13.1 (day 2)
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Minocqua Northwoods Escape Marathon, Half Marathon, 5k
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Wyoming Marathon Races Marathon, Medicine Bow Half, 50k, 5k
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Washington
Honolulu
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Cour d'Alene
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Polk City
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Boston
Buffalo
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Plowville
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Waco
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Del Valle
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Dallas
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Minocqua
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Madison
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Laramie
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Jackson Hole
D.C.
Hawaii
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Idaho
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Iowa
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Massachusetts
New York
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Pennsylvania
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Texas
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Texas
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Texas
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Wisconsin
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Wisconsin
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Wyoming
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Wyoming
May 26, 2025
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May 26, 2025
Great Falls
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Dallas
Maryland
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Texas
May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 30, 2026
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 30, 2026
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
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May 31, 2025
Deuces Wild Runs Half Marathon, 10k, 5k
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Calero Trail Run 50k, 25k, Half Marathon, 15k, 10k, 5k
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Finish the Run Griffith Park Half Marathon & 5k
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Wildcat Half Marathon, 10k, 5k
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Bishop Events Capitol City Chase Half Marathon, 10k, 5k
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Hometown Half Marathon, 10k, 5k Chicago
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Sunburst Races Marathon, Half Marathon South Bend
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Pisgah Farms & Furlongs Half Mare-athon & 10k
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MISH Waterfront Marathon, Half Marathon, 10k
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Human Powered Health Half Marathon, 10mi, 5mi, 5k, Kids Run & 11mi skate
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Hospital Hill Run Half Marathon, 10k, 5k
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Race the Lake Marathon & Half Marathon
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Fargo Marathon, Half Marathon, 10k
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Helvetia Half Marathon, 10k, 5k
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Hometown Nashville Half Marathon, 10k, 5k
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Hometown Half Marathon, 10k, 5k DFW
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Virginia Wine Country Half Marathon, 10k, 5k
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Sho Low
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San Jose
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San Jose
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Los Angeles
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El Sobrante
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Basalt
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Washington
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Wheaton
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South Bend
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Polk City
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Versailles
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Gladstone
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Duluth
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St. Paul
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Kansas City
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Hastings
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Cooperstown
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Fargo
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Bend
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Hillsboro
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Wisonville
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Nashville
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Fort Worth
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Hillsboro
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Sammamish
Arizona
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California
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California
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California
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California
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Colorado
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D.C.
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Illinois
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Indiana
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Iowa
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Kentucky
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Michigan
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Minnesota
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Minnesota
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Missouri
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Nebraska
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New York
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North Dakota
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Oregon
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Oregon
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Oregon
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Tennessee
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Texas
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Virginia
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Washington
May 31, 2026
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May 31, 2026
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May 31, 2026
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May 31, 2026
Rock'n'roll San Diego Marathon, Half Marathon
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North Shore Classice Half Marathon, 5k, 1mi
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Dexter Ann Arbor Half Marathon, 10k, 5k
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San Diego
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Highland Park
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Ann Arbor
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Youngstown
California
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Illinois
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Michigan
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Ohio
May Half Marathon Calendar event dates in dark grey are delinquent dates not updated by the race organizer yet. We strive to have dates 1 year out for May half marathons, but have no control of when they set, announce or update their dates.
May Half Marathons
The May Half Marathon Calendar is a complete simplistic listing of May half marathons 2026 in the USA. Currently the May half marathon schedule has 2026 half marathons, and May half marathons 2027 will be updated as they roll in from the 1/2 marathon race organizers. The May Half Marathon schedule identifies trail half marathons and walker friendly half marathons by a (T) symbol and a (W) symbol. The (T) means it is a TRUE trail half marathon (off road, switchbacks, etc) and a (W) means it is truly "official walker friendly" requiring the half marathon to allow a minimum of 18:32 mile pace, minimum 4 hours for participants to finish the 13.1 mile distance.
The May half marathon calendar features a complete listing of May half marathons in California, May half marathons in Texas, May half marathons in Colorado, May half marathons in New York, May half marathons in Utah, May half marathons in Illinois, May half marathons in Ohio, May half marathons in Florida, and all other 1/2 marathons in May across the USA.