| 796 | 06 Sep 25 | Triquest Triathlon | other triathlon | Ludlow, VT |
| 797 | 06 Sep 25 | Chelanathon | triathlon | Manson, WA |
| 798 | 06 Sep 25 | 2025 World Cancer Day 1M 5K 10K 13.1 26.2 | 10K/13.1/1M/26.2/5K/Triathlon/Ultra | Bowling Green, OH |
| 799 | 06 Sep 25 | Dave Parcells Madison Triathlon | Sprint Triathlon/Sprint Triathlon Relay/youth triathlon | Madison, CT |
| 800 | 06 Sep 25 | Loop De Lori Triathlon and 5K | 5K | Chippewa Falls, WI |
| 801 | 06 Sep 25 | 2025 White Lake Fall Festival Olympic Triathlon - Saturday | triathlon | White Lake, NC |
| 802 | 06 Sep 25 | Karen Stevens Memorial Kids Triathlon | youth triathlon | Severna Park, MD |
| 803 | 06 Sep 25 | Sea Cliff Triathlon | Sprint Triathlon | Sea Cliff, NY |
| 804 | 06 Sep 25 | 2025 Triquest Triathlon | triathlon | Ludlow, VT |
| 805 | 07 Sep 25 | DeGray Lake Trifest | triathlon | Caddo Valley, AR |
| 806 | 07 Sep 25 | Mighty Hamptons Steve Tarpinian Memorial Olympic Distance Triathlon | Olympic Triathlon/Olympic Triathlon Relay | Sag Harbor, NY |
| 807 | 07 Sep 25 | Survival of the Shawangunks | other triathlon | New Paltz, NY |
| 808 | 07 Sep 25 | 2025 Ironman Wisconsin (140.6) - SUNDAY | triathlon | Madison, WI |
| 809 | 07 Sep 25 | 2025 Hopkinton Women's Triathlon | triathlon | Hopkinton, MA |
| 810 | 07 Sep 25 | 2025 CajunMan Triathlon | triathlon | Lafayette, LA |