| 15901 | 16 May 26 | Muddy Dash | DFW | 5K | Fort Worth, TX |
| 15902 | 16 May 26 | 2026 Two Twisted Posts Winery 5k/10k | 10K/5K | Purcellville, VA |
| 15903 | 16 May 26 | 2026 XTERRA Oak Mountain - North American Championship | triathlon | Pelham, AL |
| 15904 | 16 May 26 | 2026 Stillwater Run and Ride | triathlon | Columbus, MT |
| 15905 | 16 May 26 | 2026 Ironman Jacksonville 140.6 | triathlon | Jacksonville, FL |
| 15906 | 17 May 26 | 2026 Cal Tri Richmond | triathlon | Spotsylvania Courthouse, VA |
| 15907 | 17 May 26 | 2026 Women's Gold Nugget Triathlon | triathlon | Anchorage, AK |
| 15908 | 17 May 26 | 2026 Ironman 70.3 Chattanooga | triathlon | Chattanooga, TN |
| 15909 | 18 May 26 | 2026 EPIC5 Challenge . . | triathlon | Kauai, HI |
| 15910 | 20 May 26 | Nitemoves 2026 | 5K | Santa Barbara, CA |
| 15911 | 23 May 26 | 2026 Soldier Field 10 | 10K | Chicago, IL |
| 15912 | 23 May 26 | Muddy Dash | Austin | 5K | Austin, TX |
| 15913 | 23 May 26 | 2026 National Wine Day @ Three Fox 5k/1M | 1M/5K | Delaplane, VA |
| 15914 | 24 May 26 | Hibiscus Half Marathon, 15K and 5 Miler 2026 | 15K | Honolulu, HI |
| 15915 | 25 May 26 | Houston Holiday Series - Memorial Day Run, Half Marathon, 5K, 10K, Family and Kids' K | 5K | Houston, TX |