| 346 | 16 May 26 | 2026 Two Twisted Posts Winery 5k/10k | 10K/5K | Purcellville, VA |
| 347 | 16 May 26 | 2026 Iowa Games Triathlon & Duathlon | triathlon | Polk, IA |
| 348 | 16 May 26 | La Jolla Half Marathon & 5K | ['Half Marathon'/ '5K'] | San Diego, CA |
| 349 | 16 May 26 | 2026 Tri 4 Schools - Waunakee Kids Triathlon | triathlon | Waunakee, WI |
| 350 | 16 May 26 | 2026 Stillwater Run and Ride | triathlon | Columbus, MT |
| 351 | 16 May 26 | The SPRING SPRUNG 5k-10k and Half Marathon | 5K/10K/13.1 | St Louis, MO |
| 352 | 16 May 26 | 2026 XTERRA Oak Mountain - North American Championship | triathlon | Pelham, AL |
| 353 | 15 May 26 | 2026 Prairie Series - Day 8 (MN/ND) | 5K/10K | Breckenridge, MN |
| 354 | 14 May 26 | 2026 XTERRA North American Championship | 5K | Pelham, AL |
| 355 | 14 May 26 | 2026 Prairie Series - Day 7 (MN/ND) | 5K/10K | Breckenridge, MN |
| 356 | 13 May 26 | 2026 Prairie Series - Day 6 (SD) | 5K/10K | Baltic, SD |
| 357 | 12 May 26 | 2026 Prairie Series - Day 5 (IA) | 5K/10K | Sioux, IA |
| 358 | 11 May 26 | 2026 Prairie Series - Day 4 (NE) | 5K/10K | South Sioux, NE |
| 359 | 10 May 26 | 2026 DC Mother's Day 5k/10k | 10K/5K | Washington, DC |
| 360 | 10 May 26 | Colorado Women's Classic 10 Miler | 10K/10M/5K | Westminster, CO |