| 451 | 25 Apr 26 | 2026 Orange County Triathlon & Duathlon | triathlon | Mission Viejo, CA |
| 452 | 14 Mar 26 | 2026 Oro Valley Triathlon & Duathlon Festival | triathlon | Oro Valley, AZ |
| 453 | 16 Aug 26 | 2026 Outdoor Divas Triathlon | triathlon | Longmont, CO |
| 454 | 28 Feb 26 | 2026 Paradise Springs 5k/10k | 10K/5K | Clifton, VA |
| 455 | 11 Jul 26 | 2026 Pardeeville Triathlon | triathlon | Pardeeville, WI |
| 456 | 13 Jun 26 | 2026 Patriot Half - Triathlon & Aquabike | triathlon | East Freetown, MA |
| 457 | 31 Jan 26 | 2026 Patriotic Pursuit 5k/10k/Half | 10K/13.1/5K | Williamsport, MD |
| 458 | 14 Nov 26 | 2026 Patterson Park 5k & Homebrew Contest | 5K | Baltimore, MD |
| 459 | 15 Mar 26 | 2026 Phoenix Shamrock 10K / 5K Run/Walk | 5K/10K | Tempe, AZ |
| 460 | 14 Mar 26 | 2026 Pi Day 5k/10k | 10K/5K | Annandale, VA |
| 461 | 07 Jun 26 | 2026 PineappleMan Triathlon | triathlon | Melbourne, FL |
| 462 | 11 Apr 26 | 2026 Pinehurst Triathlon | triathlon | Pinehurst, NC |
| 463 | 25 Apr 26 | 2026 Pinnacle Peak Spring Duathlon - tentative info | triathlon | Enumclaw, WA |
| 464 | 19 Jul 26 | 2026 Pioneer Power Sprint Triathlon | triathlon | Denton, TX |
| 465 | 09 May 26 | 2026 Pioneer Spirit Triathlon | triathlon | Petersburg, IL |