| 136 | 03 Oct 26 | 2026 Castle Creek Triathlon | triathlon | Morristown, AZ |
| 137 | 14 Nov 26 | 2026 Catalina Island Half Marathon and 10K | 10K | Avalon, CA |
| 138 | 26 Sep 26 | 2026 Cedar Mountain Rally 5k/10k/1M | 10K/1M/5K | Culpeper, VA |
| 139 | 28 Sep 26 | 2026 Center of the Nation Series - Day 1 (WY) | 5K/10K | Cheyenne, WY |
| 140 | 29 Sep 26 | 2026 Center of the Nation Series - Day 2 (CO) | 5K/10K | Sterling, CO |
| 141 | 30 Sep 26 | 2026 Center of the Nation Series - Day 3 (NE) | 5K/10K | Chadron, NE |
| 142 | 01 Oct 26 | 2026 Center of the Nation Series - Day 4 (SD) | 5K/10K | Belle Fourche, SD |
| 143 | 02 Oct 26 | 2026 Center of the Nation Series - Day 5 (ND) | 5K/10K | Bowman, ND |
| 144 | 03 Oct 26 | 2026 Center of the Nation Series - Day 6 (MT) | 5K/10K | Baker, MT |
| 145 | 19 Sep 26 | 2026 Chelanathon | triathlon | Manson, WA |
| 146 | 07 Nov 26 | 2026 Chessie Trail Marathon, Half Marathon, 10K, 5K, & 26.2 Relay | 10K/13.1/26.2/5K/Relay | Lexington, VA |
| 147 | 26 Jul 26 | 2026 Chisago Lakes Triathlon - Sunday | triathlon | Chisago, MN |
| 148 | 24 Dec 26 | 2026 Christmas Eve 5k/10k | 10K/5K | Washington, DC |
| 149 | 25 Jul 26 | 2026 Christmas in July 5k & Half | 13.1/5K | Washington, DC |
| 150 | 13 Jun 26 | 2026 Claude Moore 5k & 10k | 10K/5K | Sterling, VA |