| 4786 | 31 May 26 | Sams Fans 5K | 5K | Bexley, OH |
| 4787 | 31 May 26 | Stride With Pride 5K | 5K | West Babylon, NY |
| 4788 | 31 May 26 | OhanaHC 5K & 1 Mile Fun Run & Walk | 5K | Columbia, MD |
| 4789 | 31 May 26 | Get the Slack Out 5K and Beer Mile | 1M/5K | Cape May Court House, NJ |
| 4790 | 31 May 26 | Run the Vineyards - Jonathan Edwards 5K | 5K | North Stonington, CT |
| 4791 | 31 May 26 | OTILLO SwimRun - Orcas Island | other aquathon | Eastsound, WA |
| 4792 | 31 May 26 | 2026 Capitol City Chase 5k/10k/Half | 10K/13.1/5K | Washington, DC |
| 4793 | 31 May 26 | Landshark Swim & Aquathlon | supersprint aquathon | Amesbury, MA |
| 4794 | 31 May 26 | Spring Sprint at Uvas | Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay | Morgan Hill, CA |
| 4795 | 31 May 26 | Run the 509 | 5K/10K/13.1M | Deer Park, WA |
| 4796 | 31 May 26 | Harvest Moon Long Course Triathlon | half duathlon/half triathlon | Boulder, CO |
| 4797 | 31 May 26 | Montauk Mile | 1M | Montauk, NY |
| 4798 | 31 May 26 | Women's Whisper Triathlon | supersprint triathlon/supersprint triathlon relay | East Meadow, NY |
| 4799 | 31 May 26 | PRT Running Festival | 5K/10K/15K | Valley Cottage, NY |
| 4800 | 31 May 26 | Fort De Soto Triathlon & Duathlon Series | Olympic/Sprint Duathlon/Sprint Triathlon | Saint Petersburg, FL |