| 15301 | 07 Sep 25 | myTeam Triumph Westport Triathlon | Sprint Triathlon/Sprint Triathlon Relay/youth triathlon | Westport, CT |
| 15302 | 14 Sep 25 | The 2025 Buzzards Bay Triathlon | triathlon | Westport, MA |
| 15303 | 14 Sep 25 | 2025 Wine Run at Westport Rivers Vineyard and Winery - 5k | 5K | Westport, MA |
| 15304 | 07 Sep 25 | 2025 Westport Triathlon | triathlon | Westport, CT |
| 15305 | 14 Sep 25 | Buzzard's Bay Triathlon | Sprint Duathlon/Sprint Triathlon | Westport, MA |
| 15306 | 17 Aug 25 | Westport Island Shore Run | 10K | Westport Island, ME |
| 15307 | 30 Aug 25 | Chupacabra Endurance 10-hour Run | Ultra/10H | Westville, IN |
| 15308 | 19 Jul 25 | Summer Slam 5K | 1M/5K | Westville, OK |
| 15309 | 16 Aug 25 | 2025 Courage Triathlon . . | triathlon | Westwood, CA |
| 15310 | 16 Aug 25 | Courage Triathlon | Sprint Triathlon | Westwood, CA |
| 15311 | 17 Aug 25 | Old Wethersfield 5K & 10K | 5K/10K | Wethersfield, CT |
| 15312 | 04 Oct 25 | Coosa River Challenge | 4H adventure race | Wetumpka, AL |
| 15313 | 02 Aug 25 | Two Face 10K | 10K | Wexford, PA |
| 15314 | 30 Aug 25 | Veterans Backyard Bash | 5K/10K | Weyauwega, WI |
| 15315 | 14 Sep 25 | Run the Runway 5K | 5K | Weyers Cave, VA |