| 15871 | 02 May 26 | 2026 PROVO CITY HALF MARATHON * 5K * KIDS MARATHON | 5K | Provo, UT |
| 15872 | 02 May 26 | 2026 Maine Coast Marathon, Half Marathon and 5K | 5K | Wells, ME |
| 15873 | 03 May 26 | Houston Holiday Series - Cinco Cinco, 5K, 10K, Family and Kids' K | 10K/5K | Houston, TX |
| 15874 | 09 May 26 | Hummelstown Hunger Run 2026 | 5K | Hummelstown, PA |
| 15875 | 09 May 26 | SPA GIRL TRI San Antonio - 5/9/26 | 5K | San Antonio, TX |
| 15876 | 09 May 26 | 2026 Cinco de Miler | 1M | Chicago, IL |
| 15877 | 16 May 26 | La Jolla Half Marathon & 5K | ['Half Marathon'/ '5K'] | San Diego, CA |
| 15878 | 16 May 26 | The SPRING SPRUNG 5k-10k and Half Marathon | 5K/10K/13.1 | St Louis, MO |
| 15879 | 16 May 26 | Muddy Dash | DFW | 5K | Fort Worth, TX |
| 15880 | 18 May 26 | 2026 EPIC5 Challenge . . | triathlon | Kauai, HI |
| 15881 | 23 May 26 | 2026 Soldier Field 10 | 10K | Chicago, IL |
| 15882 | 23 May 26 | Muddy Dash | Austin | 5K | Austin, TX |
| 15883 | 24 May 26 | Hibiscus Half Marathon, 15K and 5 Miler 2026 | 15K | Honolulu, HI |
| 15884 | 25 May 26 | Houston Holiday Series - Memorial Day Run, Half Marathon, 5K, 10K, Family and Kids' K | 5K | Houston, TX |
| 15885 | 29 May 26 | 2026 Essentia Health Fargo Marathon | 5K/13.1/26.2 | Fargo, ND |