| 16 | 24 Oct 26 | 2nd Annual TALI Sadlers Creek Off-Road Duathlon | triathlon | Anderson, SC |
| 17 | 24 Oct 26 | 2026 Miami Beach Halloween Half Marathon & Freaky 4-Miler | Half Marathon | Miami Beach, FL |
| 18 | 18 Oct 26 | 2026 Cal Tri LA | triathlon | Playa del Rey, CA |
| 19 | 18 Oct 26 | 2026 Ironman California (Sacramento) 140.6 | triathlon | Sacramento, CA |
| 20 | 17 Oct 26 | SPACEROCK Trail Race | 5K/10K/13.1 | Agua Dulce, CA |
| 21 | 11 Oct 26 | ARMY TEN-MILER ★ 2026 | 10 Mile | Washington, DC |
| 22 | 10 Oct 26 | Muddy Dash | Honolulu | 5K | Honolulu, HI |
| 23 | 10 Oct 26 | 2026 Wicked Wine Run Napa Valley Fall Date | 1K/5K | American Canyon, CA |
| 24 | 10 Oct 26 | 2026 Las Vegas Triathlon | triathlon | Boulder, NV |
| 25 | 08 Oct 26 | 2026 Virginia Anvil Ultra Triathlon Race Week | triathlon | Spotsylvania, VA |
| 26 | 04 Oct 26 | 2026 SKECHERS Hot Chocolate Run - Denver | 5K | Denver, CO |
| 27 | 03 Oct 26 | 2026 Castle Creek Triathlon | triathlon | Morristown, AZ |
| 28 | 03 Oct 26 | 2026 Rail Trail 10K Race | 10K | Hamden, CT |
| 29 | 03 Oct 26 | SwimRun Cape Cod | triathlon | Wellfleet, MA |
| 30 | 03 Oct 26 | 2026 Center of the Nation Series - Day 6 (MT) | 5K/10K | Baker, MT |