| 4636 | 31 May 26 | Sams Fans 5K | 5K | Bexley, OH |
| 4637 | 31 May 26 | east bay running festival 2026 | 5K/10K | EAST PROIVIDENCE, RI |
| 4638 | 31 May 26 | The 2026 Women's Whisper Pool Tri | triathlon | East Meadow, NY |
| 4639 | 31 May 26 | Lucifer's Crossing | 6.7M | Ithaca, NY |
| 4640 | 31 May 26 | Stern Grove 4M | 4M | San Francisco, CA |
| 4641 | 31 May 26 | Women's Whisper Triathlon | supersprint triathlon/supersprint triathlon relay | East Meadow, NY |
| 4642 | 31 May 26 | Compassion 5K | 5K | Wilmington, DE |
| 4643 | 31 May 26 | Pioneer Day Fun Run | 5K | Meadow Vista, CA |
| 4644 | 31 May 26 | South Fork Sampler: A Multisport Adventure Race | 3H adventure race/5H | Cramerton, NC |
| 4645 | 31 May 26 | Joe Keany Memorial 5K | 1M/5K | Miller Place, NY |
| 4646 | 31 May 26 | Obstacle Wonderland's Rise of the Obstacles OCR | 1K/2K | Wallkill, NY |
| 4647 | 31 May 26 | Buckeye Triathlon & Multisport Festival | Olympic/Sprint/supersprint duathlon/supersprint triathlon | Waynesville, OH |
| 4648 | 31 May 26 | Youngstown Half Marathon | 2M/13.1M | Youngstown, OH |
| 4649 | 31 May 26 | Brookline Bolt 5K | 5K | Brookline, NH |
| 4650 | 31 May 26 | Newport Marathon | 13.1M/26.2M | Newport, OR |