| 15886 | 02 May 26 | 23rd annual Potomac River Run Marathon & Half | Half Marathon/Marathon | Washington, DC |
| 15887 | 02 May 26 | Finish The Ride and Finish The Run Griffith Park 2026 | 1K/5K/10K | Los Angeles, CA |
| 15888 | 02 May 26 | Bubble Run | San Diego | 5K | Midway, UT |
| 15889 | 02 May 26 | Muddy Dash Jacksonville | 5K | Jacksonville, FL |
| 15890 | 03 May 26 | Houston Holiday Series - Cinco Cinco, 5K, 10K, Family and Kids' K | 10K/5K | Houston, TX |
| 15891 | 09 May 26 | SPA GIRL TRI San Antonio - 5/9/26 | 5K | San Antonio, TX |
| 15892 | 09 May 26 | 2026 Cinco de Miler | 1M | Chicago, IL |
| 15893 | 09 May 26 | Hummelstown Hunger Run 2026 | 5K | Hummelstown, PA |
| 15894 | 16 May 26 | La Jolla Half Marathon & 5K | ['Half Marathon'/ '5K'] | San Diego, CA |
| 15895 | 16 May 26 | The SPRING SPRUNG 5k-10k and Half Marathon | 5K/10K/13.1 | St Louis, MO |
| 15896 | 16 May 26 | Muddy Dash | DFW | 5K | Fort Worth, TX |
| 15897 | 18 May 26 | 2026 EPIC5 Challenge . . | triathlon | Kauai, HI |
| 15898 | 23 May 26 | 2026 Soldier Field 10 | 10K | Chicago, IL |
| 15899 | 23 May 26 | Muddy Dash | Austin | 5K | Austin, TX |
| 15900 | 24 May 26 | Hibiscus Half Marathon, 15K and 5 Miler 2026 | 15K | Honolulu, HI |