| 391 | 07 Mar 26 | 2026 March Triathlon Series | triathlon | Arroyo Grande, CA |
| 392 | 29 Mar 26 | 2026 Maritime DeLuna Youth Duathlon | triathlon | Pensacola, FL |
| 393 | 29 Aug 26 | 2026 Mason District 5k/10k | 10K/5K | Annandale, VA |
| 394 | 26 Jul 26 | 2026 Matt Mason Cowboy Up Triathlon & Duathlon | triathlon | Smithville, MO |
| 395 | 23 May 26 | 2026 Medical Lake Triathlon | triathlon | Medical Lake, WA |
| 396 | 25 Apr 26 | 2026 Meek and Mighty Triathlon | triathlon | St. Petersburg, FL |
| 397 | 10 Oct 26 | 2026 Memorial Hermann 10 for Texas, 3.1 Armadillo Run (5K) & One 4 Texas Kids' Fun Run | 5K | The Woodlands, TX |
| 398 | 29 Mar 26 | 2026 Memorial Hermann Ironman 70.3 Texas | triathlon | Galveston, TX |
| 399 | 28 Mar 26 | 2026 Merrill Ranch Triathlon | triathlon | Florence, AZ |
| 400 | 24 Oct 26 | 2026 Miami Beach Halloween Half Marathon & Freaky 4-Miler | Half Marathon | Miami Beach, FL |
| 401 | 10 May 26 | 2026 Mighty Mother's Day Duathlon & Time Trial | triathlon | East Islip, NY |
| 402 | 02 May 26 | 2026 Mighty Mujer Triathlon - El Paso | triathlon | El Paso, TX |
| 403 | 15 Aug 26 | 2026 Miles Perret Cancer Services (MPCS) Triathlon | triathlon | Lafayette, LA |
| 404 | 06 Jun 26 | 2026 Milkman Triathlon | triathlon | Dexter, NM |
| 405 | 12 Apr 26 | 2026 Millerton Madness Triathlon & 5K | triathlon | Friant, CA |