August Half Marathons
Official Walker Friendly Half Marathons in August
18:32 mile / 4 Hour Minimum course time limit= (W)
Symbol only applies to half marathon events
Trail Half Marathons (T)
Does NOT meet the Walker Friendly 4 hour minimum (18:32 / mi) = Not Walker Friendly (NWF)
Date
Aug 2, 2025
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Aug 3, 2024
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Aug 3, 2024
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Aug 2, 2025
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Aug 2, 2025
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Aug 3, 2024
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Aug 3, 2024
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Aug 2, 2025
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Aug 2, 2025
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Aug 3, 2024
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Aug 2, 2025
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Aug 3, 2024
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Aug 3, 2024
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Aug 3, 2024
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Aug 3, 2024
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Aug 2, 2025
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Aug 3, 2024 (T)
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Aug 2, 2025
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Aug 3, 2024 (T)
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Aug 3, 2024
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Aug 3, 2024
High Mountain Half Marathon, 10k, 5k
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Vacation Races Rocky Mountain Half Marathon
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All-Out Runapalooza Half Marathon, 10k, 5k, 1mile
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Boulder Rez Marathon, 3/4 Marathon, Half Marathon, 10k, Relay
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John & Jessie Kelley Half Marathon
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Run Mahomet Half Marathon, 10k, 5k
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Running Fit The Legend Half Marathon, 5mile
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Huckleberry Running Festival Half Marathon, 10k, 5k
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Catherine Creek Classic Half Marathon, 5k, 1mi 2024 Registration
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ORRC Garlic Festival Half Marathon, 10k, 5k
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Remember the Alamo Beer! 13.1, 5k, 10k
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Parowan City Half Marathon - Yankee Meadow Run
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Runtastic Heber Run for Autism Half Marathon, 5k & 1/2 Mile
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Galloping Gertie Half Marathon, 10k, 5k
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City
State
Lakeside
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Exeter
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Truckee
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Estes Park
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Arvada
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Boulder
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New London
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Mahomet
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Riceville
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Walker
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Lenoir
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Welches
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Union
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North Plains
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La Vernia
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Parowan
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Park City
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Heber
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King George
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Tacoma
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Hartford
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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Connecticut
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Illinois
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Iowa
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Michigan
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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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Texas
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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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Wisconsin
Aug 4, 2024
Aug 4, 2024
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Aug 4, 2024
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Aug 3, 2025 (NWF)
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Aug 4, 2024 (T)
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Aug 3, 2025
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Aug 3, 2025
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Aug 3, 2025
Camarillo Marathon, Half Marathon, 10k, 5k
The Emerald Mountain Epic Marathon & Half Marathon
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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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The Hoot Half Marathon & 10 Trail Race
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Bridge of the Gods Run Half Marathon, 10k, 5k (Wa to OR)
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Camarillo
Steamboat
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Seekonk
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Rockport
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Lewis Center
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Morrow
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Cascade Locks
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Stevenson
California
Colorado
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Massachusetts
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Massachusetts
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Ohio
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Ohio
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Oregon
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Washington
Aug 10, 2024
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Aug 10, 2024
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Aug 10, 2024
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Aug 10, 2024
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Aug 10, 2024
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Aug 10, 2024
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Aug 9, 2025
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Aug 10, 2024
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Aug 9, 2025
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Aug 10, 2024
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Aug 10, 2024
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Aug 9, 2025
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Aug 10, 2024
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Aug 9, 2025
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Aug 9, 2025
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Aug 10, 2024
Dave McKay Memorial Half Marathon & 5k
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Brazen Bear Creek Trail Half Marathon, 10k, 5k
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Redwood (Summer) Trail Run Marathon, Half Marathon 50/30k, 5mi
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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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Running Between the Vines Half Marathon, 5mi & 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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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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Gopher to Badger Half Marathon & 5k
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Flagstaff
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Lafayette
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Oakland
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Georgetown
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Fort Collins
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Jackson
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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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Winchester
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Madison
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Hurley
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Hudson
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Laramie
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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Michigan
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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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Virginia
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Wisconsin
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Wisconsin
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Wisconsin
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Wyoming
Aug 11, 2024
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Aug 10, 2025
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Aug 11, 2024
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Aug 11, 2024
Humboldt Bay Half Marathon, 5k & Marina Mile
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SAR Wild Run Half Marathon, 10k, 5k, 2mi
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Rio Grande Half Marathon & One Medal 5k Run/Walk
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Arcata
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Shaver Lake
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Albuquerque
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Geneva
California
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California
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New Mexico
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New York
Aug 16, 2025 (W)
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Aug 16, 2025
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Aug 17, 2024
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Aug 17, 2024
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Aug 17, 2024
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Aug 17, 2024 (night race)
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Aug 17, 2024
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Aug 17, 2024
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Aug 17, 2024
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Aug 17, 2024
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Aug 16, 2025
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Area 13.1 Half Marathon, 10k, 5k
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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 2024 Registration
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E.T. Full Moon Midnight Marathon, Half Marathon
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Rock & Roll Hall Of Fame Half Marathon
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Post Canyon 50k & Half Marathon
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Hot Trot Half Marathon, 10k, 5k
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Provo Canyon PC2PG Half Marathon, 10k, 5k
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Ouray
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Roswell
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Dubuque
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Lincoln
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Mora
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Rachel
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Cleveland
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Hood River
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Dallas
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Lindon
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Green River
Colorado
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Georgia
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Iowa
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Michigan
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Minnesota
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Nevada
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Ohio
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Oregon
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Texas
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Utah
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Wyoming
Aug 17, 2025
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Aug 17, 2025
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Aug 18, 2024 (NWF)
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Aug 18, 2024
Aug 18, 2024
Aug 17, 2025
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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Leading Ladies Marathon & Half Marathon
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Anchorage
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San Diego
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Erie
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Rachel
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Spearfish
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Wausau
Alaska
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California
Colorado
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Nevada
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South Dakota
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Wisconsin
Aug 23, 2025
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Aug 23, 2025
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Aug 24, 2024
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Aug 23, 2025
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Aug 24, 2024
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Aug 24, 2024
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Aug 23, 2025
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Aug 23, 2025
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Aug 24, 2024
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Aug 24, 2024
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Aug 23, 2025
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Aug 24, 2024
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Aug 24, 2024
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Aug 24, 2024
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Aug 23, 2025
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Aug 24, 2024
Trail Run at Sly Park 50k, 20mi, 13.1mi, 10mi, 5k
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TBK Bank "Thirsty 13" Half Marathon
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Westminster 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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North Country Half Marathon (day 1), Marathon & 50k Ultra
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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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RockaPulko Run End of Summer Half Marathon 2024 Registration
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Run Toledo Boyscout Half Marathon & Tenderfoot 5k
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Moonlight on the Falls Marathon, Half Marathon, Quarter Marathon & Relay
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Pollock Pines
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Durango
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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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Wellston
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Rochester
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Grand Island
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Rockaway Park
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Asheville
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Perrysburg
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Park City
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Ashland
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Davis
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Milwaukee
California
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Colorado
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Colorado
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Colorado
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Colorado
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Indiana
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Michigan
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Minnesota
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Nebraska
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New York
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North Carolina
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Ohio
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Utah
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Virginia
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West Virginia
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Wisconsin
Aug 24, 2025
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Aug 25, 2024
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Aug 25, 2024
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Aug 24, 2025 (T)
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Aug 25, 2024
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Aug 25, 2024
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Aug 25, 2024
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Aug 25, 2024
Santa Rosa Marathon & Half Marathon
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Sevathon Half Marathon, 10k, 5k
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North Country Half Marathon (day 2), Marathon & 50k Ultra
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Black Diamond Express Half Marathon Trail Race
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Pro Football Hall of Fame Marathon & Half Marathon
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Sioux Falls Marathon, Half Marathon, 5k 2024 Registration
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Santa Rosa
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Los Gatos
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Tenants Harbor
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Wellston
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Mendon
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Canton
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Sioux Falls
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North Bend
California
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California
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Maine
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Michigan
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New York
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Ohio
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South Dakota
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Washington
Aug 30, 2025
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Aug 31, 2024
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Aug 31, 2024
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Aug 31, 2024
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Aug 31, 2024
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Aug 31, 2024
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Aug 31, 2024
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Aug 31, 2024
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Aug 31, 2024
Aug 31, 2024
Aug 31, 2024
Pocatello Marathon & Half Marathon
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Indiana Women's Half Marathon & 5k
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Step Up Storm Lake Half Marathon, Relay & 5k
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Marquette Marathon & Half Marathon
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The Cochecho Challenge Half Marathon
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Leave No Trace Trail Marathon & Half Marathon
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Stagecoach Run Half Marathon, 10k, 5k
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Six-O Trail Run 50k, Marathon, Half Marathon, 6mi
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East Canyon Marathon, Half Marathon, 10k, 5k
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Rockin Brews Marathon, Half Marathon, 5k
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Pocatello
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Carmel
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Storm Lake
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Marquette
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Dover
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Peninsula
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Phoenix
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Cleburne
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Morgan
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Monona
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Oconomowoc
Idaho
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Indiana
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Iowa
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Michigan
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New Hampshire
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Ohio
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Oregon
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Texas
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Utah
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Wisconsin
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Wisconsin
Aug 31, 2025
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Aug 31, 2025
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Aug 31, 2025
Koloa
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Geneseo
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Minocqua
Hawaii
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New York
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Wisconsin
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 2025 in the USA. Currently the August half marathon schedule has 2025 half marathons, and August half marathons 2026 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.