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 2027
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 1, 2026
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Aug 1, 2026
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Aug 1, 2026
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Aug 1, 2026 (night)
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Aug 1, 2026
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Aug 1, 2026
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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
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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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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E.T. Full Moon Midnight Marathon, 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 2026 Registration
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ORRC Pumpkin Ridge Run Half Marathon, 10k, 5k
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Steel City Human VS Horse Half Marathon, 50k, 50mi
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USRR Ninja 13.1mi, 10k, 5k at Biglerville PA
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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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New London
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Mahomet
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Riceville
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Maple City
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Rachel
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Manhattan
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Union
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North Plains
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Burgettstown
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Biglerville
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Park City
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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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Connecticut
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Illinois
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Iowa
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Michigan
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Nevada
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New York
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Oregon
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Oregon
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Pennsylvania
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Pennsylvania
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Utah
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Wisconsin
Aug 1, 2027
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Aug 1, 2027
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Aug 2, 2026 (NWF)
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Aug 1, 2027
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Aug 2, 2026
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Aug 1, 2027
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Aug 2, 2026
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Aug 2, 2026
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Aug 1, 2027
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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Bodies Race Co. Heatwave Half Marathon, 10k, 5k & 1mi Kansas City
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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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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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TBD
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Queens
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Morrow
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Cascade Locks
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Stevenson
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Redmond
California
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Massachusetts
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Massachusetts
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Missouri
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New York
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Ohio
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Oregon
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Washington
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Washington
Aug 3, 2027 (W)
Douglas
Alaska
Aug 4, 2027 (W)
Douglas
Alaska
Aug 5, 2027 (W)
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Aug 7, 2027 (NWF)
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Aug 7, 2027
Mainly Marathons Alaska Series Marathon, Half, 50/10/5k day 3
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Luau Run Half Marathon, 10k, 5k
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Juneau
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Farmington
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Parowan
Alaska
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Utah
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Utah
Aug 6, 2027 (W)
Juneau
Alaska
Aug 8, 2026
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Aug 8, 2026
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Aug 8, 2026 (NWF)
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Aug 8, 2026
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Aug 7, 2027
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Aug 7, 2027 (W)
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Aug 8, 2026
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Aug 8, 2026
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Aug 7, 2027
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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 7, 2027
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Aug 8, 2026
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Aug 7, 2027
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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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Hell of a Half Marathon or 2 Person Relay
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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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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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USRR Ninja 13.1mi, 10k, 5k at York PA
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The Shimmy in Shickshinny 1/2 Marathon & 1/4 Marathon
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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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Galloping Gertie Half Marathon, 10k, 5k
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Madison Mini Marathon Half Marathon & 5k
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Gadsden
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Flagstaff
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Long Beach
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Exeter
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Estes Park
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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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York
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Shickshinny
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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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Gig Harbor
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Madison
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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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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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Pennsylvania
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Pennsylvania
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Texas
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Utah
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Virginia
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Virginia
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Washington
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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 9, 2026
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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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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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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 York
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Texas
Aug 15, 2026
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Aug 15, 2026 (W)
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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
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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 14, 2027
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Aug 15, 2026
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Aug 14, 2027
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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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Summer Night Trail Half Marathon & Quarter Marathon
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Bay to Beacon Half Marathon 10k & 5k
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Run Michigan Cheap Millington 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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​Twilight at the Bay Half Marathon, 10k, 5k
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Paavo Nurmi Marathon & Half Marathon
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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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Boulder
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Roswell
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Rockford
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Indianapolis
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Harrisville
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Millington
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Mora
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Lindon
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University Place
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Hurley
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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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Georgia
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Illinois
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Indiana
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Michigan
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Michigan
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Minnesota
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Utah
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Washington
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Wisconsin
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Wyoming
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Wyoming
Aug 15, 2027
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Aug 15, 2027 (NWF)
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Aug 16, 2026
Aug 16, 2026
America's Finest City Half Marathon & 5K
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Bishop Events Summer District Half & 5k
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Summer Meltdown Half Marathon San Antonio, Quarter Marathon, 5k
San Diego
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Erie
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Georgetown
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San Antonio
California
Colorado
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D.C.
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Texas
Aug 22, 2026
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Aug 22, 2026 (NWF)
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Aug 21, 2027
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Aug 22, 2026
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Aug 21, 2027
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Aug 21, 2027
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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 22, 2026
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Aug 21, 2027
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Aug 22, 2026
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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Staunton Rocks! Marathon & Half Marathon
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Byers Peak Stampede Half Marathon & 5k
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Alzheimer's Half Marathon , 5k & Relay
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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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USRR Ninja 13.1mi, 10k, 5k at Hughesville PA (34)
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Hot Trot Half Marathon, 10k, 5k
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Parkersburg News and Sentinel Half Marathon & 2 mile race
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​Pollock Pines
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Long Beach
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Ouray
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Pine
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Winter Park
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Dubuque
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Rockaway Park
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Cary
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Perrysburg
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Hughesville
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Dallas
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Parkersburg
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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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Iowa
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New York
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North Carolina
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Ohio
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Pennsylvania
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Texas
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West Virginia
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Wisconsin
Aug 22, 2027
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Aug 22, 2027
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Aug 23, 2026
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Aug 23, 2026
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Aug 23, 2026
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Aug 22, 2027
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Aug 23, 2026
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Aug 23, 2026
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Aug 23, 2026
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Aug 22, 2027
Anchorage RunFest Marathon, Half Marathon, 49k, 5k
Santa Rosa Marathon & Half Marathon
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"The Pioneer" Prairie Dog Half Marathon & 10k Westminster
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CityTri Runs The New Jersey Summer Half, 10k, 5k
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Black Diamond Express Half Marathon Trail Race
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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 Fort Worth
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Anchorage
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Santa Rosa
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Westminster
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Manalapan TWP
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Mendon
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Cleveland
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Bear Gap
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Spearfish
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Fort Worth
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Wausau
Alaska
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California
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Colorado
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New Jersey
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New York
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Ohio
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Pennsylvania
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South Dakota
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Texas
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Wisconsin
​Aug 29, 2026
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Aug 28, 2027
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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
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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
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Aug 29, 2026
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Aug 29, 2026
Aug 28, 2027
​TBK Bank "Thirsty 13" Half Marathon
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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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Nebraska State Fair Marathon & Half Marathon
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Stagecoach Run Half Marathon, 10k, 5k
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USRR Medal Madness 13.1mi, 10k, 5k York PA
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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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La Porte
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Wellston
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Grand Island
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Asheville
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Phoenix
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York
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Townsend
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Morgan
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Payson
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Ashland
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Davis
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Oconomowoc
Colorado
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Indiana
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Michigan
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Nebraska
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North Carolina
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Oregon
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Pennsylvania
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Tennessee
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Utah
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Utah
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Virginia
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West Virginia
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Wisconsin
Aug 30, 2026
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Aug 30, 2026
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Aug 29, 2027
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Aug 30, 2026
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Aug 30, 2026
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Aug 30, 2026
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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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Newtown Community Running Event Half Marathon, 10k, 5k
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North Country Half Marathon (day 2), Marathon & 50k Ultra
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Two Hollows Monster Marathon & Half Marathon Trail Runs
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Peacehealth Appletree Marathon & Half Marathon
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Spartan Country Roads Trail Run Beast 21k Obstacle Half Marathon, 10k, 5k
Woodside
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Newtown
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Tenants Harbor
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Wellston
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Virgil
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North Bend
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Vancouver
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Oak Hill
California
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Connecticut
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Maine
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Michigan
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New York
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​Washington
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Washington
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West Virginia
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 2027 in the USA. Currently the August half marathon schedule has 2027 half marathons, and August half marathons 2028 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.