| 481 | 11 Jul 26 | 2026 Oconto Falls Dri - Tri | triathlon | Oconto Falls, WI |
| 482 | 20 Sep 26 | 2026 Oktoberfest Sprint Triathlon - Longmont | triathlon | Longmont, CO |
| 483 | 30 May 26 | 2026 OnondagaMan Half Iron | triathlon | Jamesville, NY |
| 484 | 29 Mar 26 | 2026 Operation Enduring Warrior 5k/10k/Half | 10K/13.1/5K | Potomac, MD |
| 485 | 25 Apr 26 | 2026 Orange County Triathlon & Duathlon | triathlon | Mission Viejo, CA |
| 486 | 14 Mar 26 | 2026 Oro Valley Triathlon & Duathlon Festival | triathlon | Oro Valley, AZ |
| 487 | 16 Aug 26 | 2026 Outdoor Divas Triathlon | triathlon | Longmont, CO |
| 488 | 28 Feb 26 | 2026 Paradise Springs 5k/10k | 10K/5K | Clifton, VA |
| 489 | 11 Jul 26 | 2026 Pardeeville Triathlon | triathlon | Pardeeville, WI |
| 490 | 13 Jun 26 | 2026 Patriot Half - Triathlon & Aquabike | triathlon | East Freetown, MA |
| 491 | 31 Jan 26 | 2026 Patriotic Pursuit 5k/10k/Half | 10K/13.1/5K | Williamsport, MD |
| 492 | 15 Mar 26 | 2026 Phoenix Shamrock 10K / 5K Run/Walk | 5K/10K | Tempe, AZ |
| 493 | 07 Jun 26 | 2026 PineappleMan Triathlon | triathlon | Melbourne, FL |
| 494 | 11 Apr 26 | 2026 Pinehurst Triathlon | triathlon | Pinehurst, NC |
| 495 | 19 Jul 26 | 2026 Pioneer Power Sprint Triathlon | triathlon | Denton, TX |