See all May 2024 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, May 4
| Sat May 4 | 500 Festival Mini Marathon & 5k | Indianapolis IN |
| Sat May 4 | Boise River Marathon Half Marathon 10k & 5k | Boise ID |
| Sat May 4 | Runtastic Dino Half Marathon & 5M | Vernal UT |
| Sat May 4 | DRC's Tal Morrison Half Marathon 5M & 5k | Dallas TX |
| Sat May 4 | Great Allegheny Ohiopyle Marathon Race Festival | Ohiopyle PA |
| Sat May 4 | Hacienda Hills Run Half Marathon | San Jose CA |
| Sat May 4 | IronHorse Marathon Half Marathon & 5K | Riceville IA |
| Sat May 4 | La Crosse Marathon Half Marathon & 5k | La Crosse WI |
| Sat May 4 | Less Popular Brooklyn Half Marathon | Brooklyn NY |
| Sat May 4 | Shipyard Maine Coast Half & 5k | Wells ME |
| Sat May 4 | Provo City Half Marathon & 5k | Provo UT |
| Sat May 4 | Run for the Lakes Marathon Half Marathon & 10k | Nisswa MN |
| Sat May 4 | Shiprock Marathon & Half Marathon | Shiprock NM |
Sunday, May 5
| Sun May 5 | Bay Bridge Half Marathon | Oakland CA |
| Sun May 5 | Chicagoland Spring Marathon & Half Marathon | Schaumburg IL |
| Sun May 5 | Colorado Marathon Half Marathon 10K & 5K | Fort Collins CO |
| Sun May 5 | Des Moines Women's Half Marathon | Des Moines IA |
| Sun May 5 | Flying Pig Marathon & Half Marathon | Cincinnati OH |
| Sun May 5 | Grayson Highlands Half Marathon | Grayson Highlands State Park VA |
| Sun May 5 | Hudson Valley Marathon Half Marathon at the Walkway Over the Hudson | Highland NY |
| Sun May 5 | Kalamazoo Marathon Half Marathon 10k & 5k | Kalamazoo MI |
| Sun May 5 | National Women's Half Marathon & 8K | Washington DC |
| Sun May 5 | Pacific Coast Running Festival Half Marathon 10k 5k & 1M | Long Beach WA |
| Sun May 5 | Providence Marathon Half Marathon & 5k | Providence RI |
| Sun May 5 | Run for the Zoo Half Marathon 10k & 5k | Albuquerque NM |
| Sun May 5 | The OC Marathon & Half Marathon Weekend | Costa Mesa CA |
| Sun May 5 | Sisters Country 20M & Half Marathon | Sisters OR |
Saturday, May 11
| Sat May 11 | Breakneck Point Trail Runs Marathon & Half Marathon | Beacon NY |
| Sat May 11 | Happy Half & 5k | Ellicottville NY |
| Sat May 11 | Hippie Chick Half and Quarter Marathon & 5k | Champoeg State Park OR |
| Sat May 11 | Ocho de Mayhem Half Marathon & 12k | Middleburg FL |
| Sat May 11 | Race4Warriors Marathon Half Marathon & 5K | Lewes DE |
| Sat May 11 | Santa Barbara Wine Country Half Marathon | Solvang CA |
| Sat May 11 | Smoke Rise Trail Run Half Marathon & 10k | Huntsville AL |
| Sat May 11 | Trail Run at Sly Park | Pollock Pines CA |
| Sat May 11 | Unega Mountain Dog Marathon and Half Marathon | Bellevue ID |
| Sat May 11 | USA Women's Half Marathon | Southampton NY |
| Sat May 11 | Yosemite Half Marathon | Bass Lake CA |
Sunday, May 12
| Sun May 12 | Brooklyn Mother's Day Half 10k & 5k | Brooklyn NY |
| Sun May 12 | Mother's Day Run for the Roses Half Marathon 10k & 5k | Coplay PA |
Saturday, May 18
| Sat May 18 | Endure 12 Hour 24 Hour & Half Marathon | Divide CO |
| Sat May 18 | Fargo Marathon Half Marathon & 10K | Fargo ND |
| Sat May 18 | Never Say Never Half Marathon & 10k | Tieton WA |
| Sat May 18 | RunStock Half Marathon | Kaiser MO |
| Sat May 18 | Uff Da Run Half Marathon & 5K | Woodville WI |
Saturday, May 25
| Sat May 25 | Armed Forces Half Marathon | Concord CA |
