See all August 2023 half marathons across the USA below, or click Race Calendars above to see each state’s calendar. For each race, you’ll find course maps, elevation profiles, reviews and info on how to register.
Saturday, August 5
Sunday, August 6
Sun Aug 6 | Bridge of the Gods Run Half Marathon 10k & 5M | Cascade Locks OR |
Sun Aug 6 | Camarillo Marathon Half Marathon 10K & 5K | Camarillo CA |
Sun Aug 6 | Emerald Mountain Epic Marathon & Half Marathon | Steamboat Springs CO |
Sun Aug 6 | Funky Monkey Half Marathon 10k & 5k | Seekonk MA |
Sun Aug 6 | Hofbrauhaus Cleveland Half Marathon 10k & 5k | Cleveland OH |
Sun Aug 6 | Hoot Half & 10k | Lewis Center OH |
Sun Aug 6 | Hott in Here Half Marathon 10k & 5k | Ft. Worth TX |
Sun Aug 6 | Little Miami Half Marathon | Morrow OH |
Sun Aug 6 | Skyline 50K & Half Marathon | Castro Valley CA |
Sun Aug 6 | TripleThreat Half Marathon 5k & 1M | Rockport MA |
Saturday, August 12
Sunday, August 13
Sun Aug 13 | Brooklynite Summer Half Marathon | Brooklyn NY |
Sun Aug 13 | Carderock Charge Half 10k & 5k | Potomac MD |
Sun Aug 13 | Geneva Half Marathon | Geneva NY |
Sun Aug 13 | Humboldt Bay Marathon Half Marathon 5k & 1M | Eureka CA |
Sun Aug 13 | Lake Merced Half Marathon & 4.5M | San Francisco CA |
Sun Aug 13 | Nocterra Quitter's Run 6H Marathon Half Marathon 10k & 5k | Powell OH |
Sun Aug 13 | SAR Wild Run Half Marathon 10k & 5k | Shaver Lake CA |
Saturday, August 19
Sunday, August 20
Sun Aug 20 | America's Finest City Half Marathon & 5K | San Diego CA |
Sun Aug 20 | Anchorage RunFest 49k Marathon Half Marathon & 5k | Anchorage AK |
Sun Aug 20 | Erie Half Marathon | Erie CO |
Sun Aug 20 | Fall Creek Falls Half Marathon 10k & 5k | Spencer TN |
Sun Aug 20 | Fun in the Sun Half Marathon 15k 10k & 5k | Santa Monica CA |
Sun Aug 20 | Leading Ladies & Dakota Spirit Marathon Half Marathon & 10k | Spearfish SD |
Sun Aug 20 | Summer District 5k & Half | Washington DC |
Sun Aug 20 | Thacher Park Trail Running Festival Half Marathon | Voorheesville NY |
Monday, August 21-Friday, August 25
Fri Aug 25 | Cedar Breaks at Night Half Marathon | Brian Head UT |
Saturday, August 26
Sunday, August 27
Sun Aug 27 | Black Diamond Express Trail Race Half Marathon & 5k | Mendon NY |
Sun Aug 27 | Blueberry Cove 13.1 | Tenants Harbor ME |
Sun Aug 27 | Boston Bound Marathon Marathon & Half Marathon | Menomonee Falls WI |
Sun Aug 27 | Canine Classic at Paws Up Half Marathon 5M & 2M | Greenough MT |
Sun Aug 27 | Carrabassett Valley Half Marathon | Carrabassett Valley ME |
Sun Aug 27 | Hellbender Half Marathon & 5k | Bear Gap PA |
Sun Aug 27 | Iron Horse Half Marathon | North Bend WA |
Sun Aug 27 | Millennium Meadows Marathon Half Marathon & 10k | Grand Rapids MI |
Sun Aug 27 | North Country Trail Run Marathon & Half Marathon | Manistee MI |
Sun Aug 27 | Santa Rosa Marathon & Half Marathon | Santa Rosa CA |
Sun Aug 27 | Sioux Falls Marathon Half Marathon 10k & 5k | Sioux Falls SD |
Sun Aug 27 | Wee-Chi-Tah Trail Events Half Marathon & 10k | Wichita Falls TX |
Sun Aug 27 | Winchester Battlefield 5k 10k & Half | Winchester VA |