NOTE: Many races have been cancelled, postponed, or switched to virtual-only due to the ongoing COVID-19 pandemic. We’re doing our best to update information as soon as possible, but check the race’s website for the latest details.
See all May 2020 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 2
| Sat May 2 | 500 Festival Mini Marathon & 5K | Indianapolis IN |
| Sat May 2 | Deja Vu Half Marathon 10K & 5K | Las Vegas NV |
| Sat May 2 | Ghost of Tacoma Marathon & Half Marathon | Tacoma WA |
| Sat May 2 | IronHorse Marathon Half Marathon 10K & 5K | Riceville IA |
| Sat May 2 | Nellie Johnstone Half Marathon & 5K | Bartlesville OK |
| Sat May 2 | New Prague Half Marathon 10K & 5K | New Prague MN |
| Sat May 2 | Noccalula Falls Spring Trail Run | Gadsden AL |
| Sat May 2 | Provo City Half Marathon & 5K | Provo UT |
| Sat May 2 | Strolling Jim Run Marathon Half Marathon 40-Mile & 10K | Wartrace TN |
| Sat May 2 | Sunflower Trail Marathon Half Marathon & Relay | Winthrop WA |
| Sat May 2 | Trail Nut Half Marathon & 10K | Bedford VA |
| Sat May 2 | Whiskey Row Marathon Half Marathon & 10K | Prescott AZ |
Sunday, May 3
| Sun May 3 | Avenue of the Giants Marathon Half Marathon & 10K | Weott CA |
| Sun May 3 | Bay Bridge Half Marathon | Oakland CA |
| Sun May 3 | Colorado Marathon Half Marathon 10K & 5K | Fort Collins CO |
| Sun May 3 | First Responder Half Marathon & 5K | Waco TX |
| Sun May 3 | Frederick Running Festival Half Marathon 5K & Relay | Frederick MD |
| Sun May 3 | Kalamazoo Marathon & Borgess Half Marathon 10K & 5K | Kalamazoo MI |
| Sun May 3 | Lake Minnetonka Half Marathon | Wayzata MN |
| Sun May 3 | Lake Norman Half Marathon & 5K | Mooresville NC |
| Sun May 3 | National Women's Half Marathon & 8K | Washington DC |
| Sun May 3 | NYC Spring Half Marathon – Manhattanite Half | New York NY |
| Sun May 3 | Pittsburgh Marathon Half Marathon & Relay | Pittsburgh PA |
| Sun May 3 | Potomac River Run Marathon & Half Marathon | Washington DC |
| Sun May 3 | Providence Marathon Half Marathon & 5K | Providence RI |
| Sun May 3 | Tacoma City Marathon Half Marathon & Relay | Tacoma WA |
Saturday, May 9
| Sat May 9 | Bridgehampton Half Marathon | Bridgehampton NY |
| Sat May 9 | Carbon Valley Half Marathon | Firestone CO |
| Sat May 9 | Festival Foods Grandad Half Marathon 5K & Relay | La Crosse WI |
| Sat May 9 | Greenbrier Half Marathon | White Sulphur Springs WV |
| Sat May 9 | Hippie Chick Half Marathon & Quarter Marathon | Hillsboro OR |
| Say May 9 | Journeys Half Marathon 10K & 5K | Eagle River WI |
| Sat May 9 | Maine Coast Marathon & Half Marathon | Biddeford ME |
| Sat May 9 | Rhinebeck Hudson Valley Marathon & Half Marathon | Rhinebeck NY |
| Sat May 9 | Running with the Cows Half Marathon & 5K | Bucyrus KS |
| Sat May 9 | Sand Bar Half Marathon & 5K | Englewood FL |
| Sat May 9 | Tromp and Chomp Trail Run Half Marathon & 8-Mile | La Farge WI |
| Sat May 9 | Vigor Big Cottonwood Canyon Half Marathon 10K & 5K | Cottonwood Heights UT |
| Sat May 9 | Yosemite Half Marathon | Bass Lake CA |
Sunday, May 10
| Sun May 10 | Michigan Shores Mini Half Marathon & 5K | New Buffalo MI |
| Sun May 10 | Mother's Day Half Marathon & 5K | Kirkland WA |
| Sun May 10 | Rabbit Valley Half Marathon | Fruita CO |
| Sun May 10 | Wildflower Trail Run Marathon Half Marathon & 7-Mile | Bastrop TX |
Saturday, May 16
| Sat May 16 | Clear Creek Half Marathon | Sevier UT |
| Sat May 16 | Dayton Spring Half Marathon 10K & 5K | Dayton OH |
| Sat May 16 | DeWitt Take a Breath for PH and Get Moving for MS Half Marathon (Virtual) | DeWitt MI |
| Sat May 16 | Erie Canal Half Marathon & 5K | Utica NY |
| Sat May 16 | Gold Star Mission Run for the Fallen Half Marathon | Rockford IL |
| Sat May 16 | Hidden Hills Ultra Marathon Half Marathon 50-Mile 10K & 5K | Strawn TX |
| Sat May 16 | Lion Heart Half Marathon 10K & 5K | Woodward OK |
| Sat May 16 | Madeline Island Marathon & Half Marathon | La Pointe WI |
| Sat May 16 | Race4Warriors Marathon Half Marathon & 5K | Lewes DE |
| Sat May 16 | Rock 'n' Roll Atlantic City Half Marathon | Atlantic City NJ |
| Sat May 16 | San Juan Island Half Marathon | Friday Harbor WA |
| Sat May 16 | Uff Da Run Half Marathon & 5K | Woodville WI |
| Sat May 16 | Walk-On's Independence Bowl Kickoff K's Half Marathon | Shreveport LA |
Sunday, May 17
| Sun May 17 | Capital City Marathon Half Marathon & 5-Mile | Olympia WA |
| Sun May 17 | Colfax Marathon Half Marathon Urban 10-Miler & Relay | Denver CO |
| Sun May 17 | Gate City Marathon Half Marathon & Relay | Nashua NH |
| Sun May 17 | Gold Country Half Marathon & 5K | El Dorado Hills CA |
| Sun May 17 | Great Sacandaga Half Marathon | Northville NY |
| Sun May 17 | Marine Corps Historic Half Marathon | Fredericksburg VA |
| Sun May 17 | Papillion Half Marathon 10K & 5K | Papillion NE |
| Sun May 17 | Reflection Run Half Marathon 10K & 5K | Washougal WA |
| Sun May 17 | Rite Aid Cleveland Marathon & Half Marathon | Cleveland OH |
| Sun May 17 | Run on the River Half Marathon 10K & 5K | Astoria OR |
Saturday, May 23
| Sat May 23 | Eastern Oregon Half Marathon 10K & 5K | Spray OR |
| Sat May 23 | Growing Green Challenge Half Marathon & Half-of-a-Half | Rush City MN |
| Sat May 23 | Race for the Green Half Marathon & 5K | Seneca SC |
| Sat May 23 | Run Around Lone Mountain Half Marathon & 10K | Blue Gap AZ |
Sunday, May 24
| Sun May 24 | Badass Texas Half Marathon 10K & 5K | Waco TX |
| Sun May 24 | Boston's Run to Remember Half Marathon & 5-Mile | Boston MA |
Saturday, May 30
| Sat May 30 | Half Hastings Half Marathon | Hastings NE |
| Sat May 30 | Maryland Half Marathon & 5K | Fulton MD |
| Sat May 30 | Night Echoes Half Marathon & 10K Moonlight Run | Pioche NV |
Sunday, May 31
| Sun May 31 | Lake Balboa Half Marathon | Van Nuys CA |
| Sun May 31 | Pure Pikermi Half Marathon & Relay | Aurora IL |
| Sun May 31 | Yankee Springs Trail Run (Virtual) | Middleville MI |
