| 15871 | 09 May 26 | 2026 Hippie Chick | 5K | St. Paul, OR |
| 15872 | 16 May 26 | La Jolla Half Marathon & 5K | ['Half Marathon'/ '5K'] | San Diego, CA |
| 15873 | 16 May 26 | The SPRING SPRUNG 5k-10k and Half Marathon | 5K/10K/13.1 | St Louis, MO |
| 15874 | 16 May 26 | Muddy Dash | DFW | 5K | Fort Worth, TX |
| 15875 | 18 May 26 | 2026 EPIC5 Challenge . . | triathlon | Kauai, HI |
| 15876 | 23 May 26 | 2026 Soldier Field 10 | 10K | Chicago, IL |
| 15877 | 23 May 26 | Muddy Dash | Austin | 5K | Austin, TX |
| 15878 | 24 May 26 | Hibiscus Half Marathon, 15K and 5 Miler 2026 | 15K | Honolulu, HI |
| 15879 | 25 May 26 | Houston Holiday Series - Memorial Day Run, Half Marathon, 5K, 10K, Family and Kids' K | 5K | Houston, TX |
| 15880 | 29 May 26 | 2026 Essentia Health Fargo Marathon | 5K/13.1/26.2 | Fargo, ND |
| 15881 | 30 May 26 | Silver Moon Race: Paso Robles | 10K/Ultra | Paso Robles, CA |
| 15882 | 30 May 26 | Summer Dash Series - Lemonade Dash Austin, 5K, 10K, Family and Kids' K | 5K | Round Rock, TX |
| 15883 | 30 May 26 | Muddy Dash | Oklahoma City | 5K | Oklahoma, OK |
| 15884 | 31 May 26 | North Shore Classic | 5K | Highland Park, IL |
| 15885 | 06 Jun 26 | Shipyard Old Port Half Marathon and 5K | 5K | Portland, ME |