| 661 | 16 Aug 25 | 2025 Oregon Kids Triathlon | triathlon | Oregon, WI |
| 662 | 24 Aug 25 | 2025 OTILLO SwimRun Mackinac Island | triathlon | Mackinac Island, MI |
| 663 | 10 Aug 25 | 2025 Outdoor Divas Triathlon | triathlon | Longmont, CO |
| 664 | 27 Sep 25 | 2025 Outdoorsman Triathlon | triathlon | Bryson, NC |
| 665 | 13 Sep 25 | 2025 Outer Banks Triathlon | triathlon | Manteo, NC |
| 666 | 27 Sep 25 | 2025 Over Under Biathlon & 5K | triathlon | Surf, NC |
| 667 | 20 Sep 25 | 2025 Pacific Coast Triathlon | triathlon | Laguna Beach, CA |
| 668 | 05 Oct 25 | 2025 Para Endurance Adaptive Triathlon . . | triathlon | Pflugerville, TX |
| 669 | 13 Sep 25 | 2025 Parvin Anniversary Duathlon & 6K Trail Race - SATURDAY EVENTS | triathlon | Elmer, NJ |
| 670 | 26 Jul 25 | 2025 Pass It Along Triathlon | triathlon | Sparta, NJ |
| 671 | 11 Sep 25 | 2025 Patriot's Day 5k/10k | 10K/5K | Springfield, VA |
| 672 | 06 Sep 25 | 2025 Patriots Triathlon Festival - Olympic Saturday | triathlon | Williamsburg, VA |
| 673 | 06 Dec 25 | 2025 Patterson Park 5k & Homebrew Contest | 5K | Baltimore, MD |
| 674 | 31 Aug 25 | 2025 Peach Kid's Triathlon - Mountain View | triathlon | Marietta, GA |
| 675 | 17 Aug 25 | 2025 Peasantman Triathlon | triathlon | Penn Yan, NY |