See all May 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.
Monday, May 1 – Friday, May 5
Fri May 5 | Red Island Marathon & Half Marathon | Warwick RI |
Saturday, May 6
Sunday, May 7
Monday, May 8 – Friday, May 12
Fri May 12 | Maple Leaf Marathon & Half Marathon | Fairlee VT |
Fri May 12 | Prairie Series – Day 1 Marathon Half Marathon 10k & 5k | Miami OK |
Saturday, May 13
Sunday, May 14
Monday, May 15 – Friday, May 19
Mon May 15 | Prairie Series – Day 4 Marathon Half Marathon 10k & 5k | South Sioux City NE |
Tue May 16 | Prairie Series – Day 5 Marathon Half Marathon 10k & 5k | Sioux City IA |
Wed May 17 | Prairie Series – Day 6 Marathon Half Marathon 10k & 5k | Baltic SD |
Thu May 18 | Prairie Series – Day 7 Marathon Half Marathon 10k & 5k | Breckenridge MN |
Fri May 19 | Prairie Series – Day 8 Marathon Half Marathon 10k & 5k | Wahpeton ND |
Saturday, May 20
Sunday, May 21
Saturday, May 27
Sunday, May 28
Sun May 28 | Badass Texas Half Marathon 10k & 5k | Waco TX |
Sun May 28 | Boston's Run to Remember Half Marathon & 5M | Boston MA |
Sun May 28 | Buffalo Marathon & Half Marathon | Buffalo NY |
Sun May 28 | Charlie Horse Half Marathon & 5k | Mohnton PA |
Sun May 28 | Coeur d'Alene Marathon Half Marathon 10k & 5k | Coeur d'Alene ID |
Sun May 28 | Hibiscus Half Marathon 15K & 5-Miler | Honolulu HI |
Sun May 28 | Lake City Running Festival Half Marathon 10k & 5k | Plattsburgh NY |
Sun May 28 | Memorial Day Run Half Marathon 10k & 5k | Lyons WI |
Sun May 28 | Northwoods Escape Marathon Half Marathon & 5k | Minocqua WI |
Sun May 28 | Old Turnpike Half Marathon | Waterfall PA |
Sun May 28 | Run Madtown Half Marathon & 5k | Madison WI |
Sun May 28 | Spirit Trail Run Marathon Half Marathon & 8k | Buena Vista CO |
Sun May 28 | Spring Georgetown Memorial 5k & Half | Washington DC |
Sun May 28 | Texas Triple Wayne's World Marathon & Half Marathon | Dallas TX |
Sun May 28 | Wyoming Marathon Races | Laramie WY |
Monday, May 29 – Wednesday, May 31
Mon May 29 | Fallen Soldiers Memorial Half 10k & 5k | Potomac MD |
Mon May 29 | Georgia Peach Jam Half Marathon & 5k | Cumming GA |
Mon May 29 | Grand Run Half Marathon 10k & 5k | Westfield IN |
Mon May 29 | Laguna Hills Memorial Day Half Marathon 10k & 5k | Laguna Hills CA |
Mon May 29 | Quad Cities Running Festival Half Marathon 7M & 5k | Bettendorf IA |
Mon May 29 | Texas Triple Memorial Day Marathon & Half Marathon | Dallas TX |
Wed May 31 | Independence Series – Day 1 Marathon & Half Marathon | Bear DE |