August Half Marathons
Trail Half Marathons (T)
Official Walker Friendly Half Marathons in August
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)
August Half Marathons 2026
Date
Aug 1, 2026
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Aug 1, 2026
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Aug 1, 2026
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Aug 1, 2026 (T)
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Aug 1, 2026
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Aug 2, 2025
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Aug 1, 2026
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Aug 1, 2026
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Aug 2, 2025
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Aug 1, 2026
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Aug 2, 2025
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Aug 1, 2026
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Aug 1, 2026
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Aug 1, 2026 (T)
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Aug 2, 2025
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Aug 2, 2025
USRR Ninja Half Marathon, 10k, 5k at Medal of Piedmont Park
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High Mountain Half Marathon, 10k, 5k
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Vacation Races Rocky Mountain Half Marathon
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John & Jessie Kelley Half Marathon
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Run Mahomet Half Marathon, 10k, 5k
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Port Oneida Run Half Marathon, 10k, 5k
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CityTri NYC Summer Half & 5 Miler
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Catherine Creek Classic Half Marathon, 5k, 1mi 2025 Registration
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ORRC Pumpkin Ridge Run Half Marathon, 10k, 5k
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Parowan City Half Marathon - Yankee Meadow Run
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Galloping Gertie Half Marathon, 10k, 5k
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City
State
Piedmont
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Lakeside
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Exeter
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Truckee
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Estes Park
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New London
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Mahomet
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Riceville
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Maple City
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Manhattan
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Union
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North Plains
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Parowan
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Park City
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Tacoma
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Hartford
Alabama
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Arizona
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California
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California
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Colorado
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Connecticut
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Illinois
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Iowa
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Michigan
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New York
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Oregon
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Oregon
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Utah
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Utah
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Washington
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Wisconsin
Aug 2, 2026
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Aug 2, 2026
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Aug 2, 2026 (NWF)
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Aug 2, 2026
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Aug 2, 2026
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Aug 2, 2026
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Aug 2, 2026
Camarillo Marathon, Half Marathon, 10k, 5k
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Funky Monkey Half Marathon, 10k, 5k
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YUKANRUN Triple Threat Half Marathon, 5k, 1mi
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City Tri Runs The Queens NYC Half
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Bridge of the Gods Run Half Marathon, 10k, 5k (Wa to OR)
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Camarillo
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Seekonk
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Rockport
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Queens
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Morrow
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Cascade Locks
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Stevenson
California
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Massachusetts
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Massachusetts
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New York
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Ohio
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Oregon
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Washington
Aug 4, 2026 (W)
Douglas
Alaska
Aug 5, 2026 (W)
Douglas
Alaska
Aug 6, 2026 (W)
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Aug 6, 2026 (NWF)
Juneau
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Farmington
Alaska
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Utah
Aug 7, 2026 (W)
Juneau
Alaska
Aug 8, 2026
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Aug 9, 2025
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Aug 8, 2026 (NWF)
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Aug 9, 2025
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Aug 8, 2025 (W)
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Aug 9, 2025
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Aug 9, 2025
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026
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Dave McKay Memorial Half Marathon & 5k
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BWR The Lucky Eight Half Marathon, 15k, 10k, 5k
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Brazen Bear Creek Trail Half Marathon, 10k, 5k
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All-Out Runapalooza Half Marathon, 10k, 5k, 1mile
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Georgetown to Idaho Springs Half Marathon
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Fort Collins Human Race Half Marathon, 10k, 5k
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Gopher to Badger Half Marathon & 5k
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Smelter City Scamper Half Marathon, 10k, 5k
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Haulin Aspen Trail Marathon & Half Marathon
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Huckleberry Running Festival Half Marathon, 10k, 5k
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Remember the Alamo Beer! 13.1, 5k, 10k
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Runtastic Heber Run for Autism Half Marathon, 5k & 1/2 Mile
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3 H Trail Half Marathon & DHRT 50k
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Bishop Events Third Winchester Battlefield Half, 10k, 5k
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Madison Mini Marathon Half Marathon & 5k
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Paavo Nurmi Marathon & Half Marathon
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Gadsden
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Flagstaff
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Long Beach
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Lafayette
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Arvada
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Georgetown
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Fort Collins
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Stillwater
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Anaconda
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Akron
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Springfield
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Bend
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Welches
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San Antonio
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Heber
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King George
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Winchester
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Madison
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Hurley
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Hudson
Alabama
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Arizona
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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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Minnesota
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Montana
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Ohio
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Ohio
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Oregon
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Oregon
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Texas
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Utah
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Virginia
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Virginia
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Wisconsin
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Wisconsin
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Wisconsin
Aug 9, 2026
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Aug 9, 2026
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Aug 9, 2026
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Aug 9, 2026
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Aug 10, 2025
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Aug 10, 2025
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Aug 9, 2026
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Aug 9, 2026
Bearfest Marathon, Half Marathon
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Humboldt Bay Half Marathon, 5k & Marina Mile
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SAR Wild Run Half Marathon, 10k, 5k, 2mi
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The Emerald Mountain Epic Marathon & Half Marathon
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Rio Grande Half Marathon & One Medal 5k Run/Walk
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CityTri Jersey Shore Half, 10k, 5k
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Summer Meltdown Half Marathon Houston & Quarter Marathon, 5k
Wrangell
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Arcata
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Shaver Lake
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Steamboat
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Albuquerque
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Mays Landing
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Geneva
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Sugarland
Alaska
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California
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California
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Colorado
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New Mexico
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New Jersey
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New York
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Texas
Aug 15, 2026
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Aug 15, 2026 (W)
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Aug 15, 2026 (W)
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Aug 15, 2026
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Aug 16, 2025
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Aug 15, 2026
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Aug 16, 2025
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Aug 16, 2025
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Aug 15, 2026
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Aug 15, 2026
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Aug 15, 2026
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Aug 15, 2026
Redwood (Summer) Trail Run Marathon, Half Marathon 50/30k, 5mi
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BWR Summer Sensation Half Marathon, 15k, 10k, 5k
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Boulder Rez Marathon, 3/4 Marathon, Half Marathon, 10k, Relay
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Area 13.1 Half Marathon, 10k, 5k
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River Run for RAMP Half Marathon. 5k, 3k Registration
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Alzheimer's Half Marathon , 5k & Relay
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Bay to Beacon Half Marathon 10k & 5k
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Mora Half Marathon & Classic 5k 2026 Registration
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Provo Canyon PC2PG Half Marathon, 10k, 5k
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Run with the Horses Marathon, Half Marathon, 10k
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Oakland
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Long Beach
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Ouray
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Boulder
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Roswell
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Rockford
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Dubuque
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Lincoln
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Mora
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Lindon
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Green River
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Laramie
California
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California
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Colorado
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Colorado
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Georgia
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Illinois
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Iowa
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Michigan
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Minnesota
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Utah
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Wyoming
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Wyoming
Aug 16, 2026
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Aug 16, 2026
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Aug 16, 2026 (NWF)
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Aug 18, 2024
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Aug 17, 2025
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Aug 16, 2026
Aug 17, 2025
Aug 16, 2026
Anchorage RunFest Marathon, Half Marathon, 49k
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America's Finest City Half Marathon & 5K
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E.T. Full Moon Midnight Marathon, Half Marathon (midnight run)
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CityTri Jersey City Summer Half, 10k, 5k
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Rock & Roll Hall Of Fame Half Marathon
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Leading Ladies Marathon & Half Marathon
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Summer Meltdown Half Marathon, Quarter Marathon & 5k San Antonio
Anchorage
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San Diego
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Erie
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Rachel
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Jersey City
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Cleveland
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Spearfish
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San Antonio
Alaska
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California
Colorado
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Nevada
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New Jersey
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Ohio
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South Dakota
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Texas
Aug 22, 2026
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Aug 22, 2026 (NWF)
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Aug 23, 2025
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Aug 22, 2026
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Aug 22, 2026
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Aug 23, 2025
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Aug 23, 2025
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Aug 23, 2025
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Aug 23, 2025
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Aug 22, 2026
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Aug 22, 2026
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Aug 22, 2026
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Aug 22, 2026
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Aug 23, 2025
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Aug 23, 2025
Trail Run at Sly Park 50k, 20mi, 13.1mi, 10mi, 5k
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BWR Rockin' Summer Half Marathon, 15k, 10k, 5k
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Westminster Night Trail Race Half Marathon, 10k and 5k
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Staunton Rocks! Marathon & Half Marathon
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Byers Peak Stampede Half Marathon & 5k
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Tour de La Porte Half Marathon & 5k
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Scheels Healthy Human Race Half Marathon, Hand Cycling Half, Relay & 5k
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Nebraska State Fair Marathon & Half Marathon
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CityTri NJ Summer Half Marathon, 10k, 5k
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RockaPulko Run End of Summer Half Marathon 2026 Registration
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Summer's Done 13.1, 3/8 marathon, 1/4 marathon, 1/8 marathon
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Run Toledo Boyscout Half Marathon & Tenderfoot 5k
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Hot Trot Half Marathon, 10k, 5k
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​Pollock Pines
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Long Beach
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Westminster
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Pine
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Winter Park
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LaPorte
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Rochester
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Grand Island
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Jersey City
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Rockaway Park
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Cary
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Perrysburg
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Dallas
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Ashland
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Milwaukee
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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Indiana
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Minnesota
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Nebraska
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New Jersey
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New York
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North Carolina
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Ohio
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Texas
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Virginia
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Wisconsin
Aug 23, 2026
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Aug 23, 2026
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Aug 23, 2026
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Aug 24, 2025
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Aug 24, 2025
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Aug 23, 2026
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Aug 23, 2026
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Aug 23, 2026
Santa Rosa Marathon & Half Marathon
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"The Pioneer" Prairie Dog Half Marathon & 10k Westminster
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Black Diamond Express Half Marathon Trail Race
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Two Hollows Monster Marathon & Half Marathon Trail Runs
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Pro Football Hall of Fame Marathon & Half Marathon
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Summer Meltdown Half Marathon Fort Worth
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Santa Rosa
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Westminster
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Tenants Harbor
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Mendon
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Virgil
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Canton
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Fort Worth
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Wausau
California
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Colorado
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Maine
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New York
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New York
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Ohio
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Texas
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Wisconsin
​Aug 29, 2026
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Aug 29, 2026
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Aug 31, 2024
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Aug 29, 2026
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Aug 30, 2025
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Aug 30, 2025
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Aug 29, 2026
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Aug 29, 2026
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Aug 29, 2026
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Aug 29, 2026
Aug 30, 2025
​TBK Bank "Thirsty 13" Half Marathon
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North Country Half Marathon (day 1), Marathon & 50k Ultra
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The Cochecho Challenge Half Marathon
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Stagecoach Run Half Marathon, 10k, 5k
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Vacation Races Great Smoky Mountains Half Marathon
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East Canyon Marathon, Half Marathon, 10k, 5k
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Runtastic Nebo Marathon, Half Marathon, 10k, 5k
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Moonlight on the Falls Marathon, Half Marathon, Quarter Marathon & Relay
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Durango
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Wellston
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Dover
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Asheville
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Phoenix
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Mitchell
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Townsend
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Morgan
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Payson
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Davis
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Oconomowoc
Colorado
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Michigan
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New Hampshire
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North Carolina
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Oregon
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Oregon
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Tennessee
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Utah
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Utah
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West Virginia
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Wisconsin
Aug 30, 2026
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Aug 31, 2025
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Aug 30, 2026
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Aug 31, 2025
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Aug 31, 2025
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Aug 30, 2026
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Aug 30, 2026
Crystal Springs (Summer) Trail Run Marathon, 30k, Half Marathon, 8k
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Daniel Boone Run for Statehood 1/2 Marathon & 5k
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North Country Half Marathon (day 2), Marathon & 50k Ultra
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Swanzey Covered Bridges Half Marathon ~ Elijah's Race
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Woodside
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Falmouth
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Wellston
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Swanzey
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​Robbinsville
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North Bend
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Vancouver
California
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Kentucky
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Michigan
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New Hampshire
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New Jersey
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​Washington
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Washington
August Half Marathon Calendar event dates in grey are delinquent dates not updated by the race organizer yet. We strive to have dates 1 year out for August half marathons, but have no control of when they set, announce or update their dates.
August Half Marathons
The August Half Marathon Calendar is a complete simplistic listing of August half marathons 2026 in the USA. Currently the August half marathon schedule has 2026 half marathons, and August half marathons 2027 will be updated as they roll in from the 1/2 marathon race organizers. The August 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 August half marathon calendar features a complete listing of August half marathons in California, August half marathons in Texas, August half marathons in Colorado, August half marathons in New York, August half marathons in Utah, August half marathons in Illinois, August half marathons in Ohio, August half marathons in Florida, and all other 1/2 marathons in August across the USA.