| 271 | 31 May 26 | 2026 Capitol City Chase 5k/10k/Half | 10K/13.1/5K | Washington, DC |
| 272 | 02 May 26 | 2026 Carderock 5k/10k/Half | 10K/13.1/5K | Potomac, MD |
| 273 | 12 Apr 26 | 2026 Care Packages at Carderock 5k/10k/Half | 10K/13.1/5K | Potomac, MD |
| 274 | 03 Oct 26 | 2026 Castle Creek Triathlon | triathlon | Morristown, AZ |
| 275 | 12 Apr 26 | 2026 CaveMan Triathlon | triathlon | Flower Mound, TX |
| 276 | 10 Jan 26 | 2026 CCP / Mount Pleasant Off Road Duathlon | triathlon | Mount Pleasant, SC |
| 277 | 11 Apr 26 | 2026 Cedar Creek SPRING Duathlon | triathlon | Seaford, NY |
| 278 | 22 Mar 26 | 2026 Cedarville Charge 5k/10k | 10K/5K | Waldorf, MD |
| 279 | 28 Sep 26 | 2026 Center of the Nation Series - Day 1 (WY) | 5K/10K | Cheyenne, WY |
| 280 | 29 Sep 26 | 2026 Center of the Nation Series - Day 2 (CO) | 5K/10K | Sterling, CO |
| 281 | 30 Sep 26 | 2026 Center of the Nation Series - Day 3 (NE) | 5K/10K | Chadron, NE |
| 282 | 01 Oct 26 | 2026 Center of the Nation Series - Day 4 (SD) | 5K/10K | Belle Fourche, SD |
| 283 | 02 Oct 26 | 2026 Center of the Nation Series - Day 5 (ND) | 5K/10K | Bowman, ND |
| 284 | 03 Oct 26 | 2026 Center of the Nation Series - Day 6 (MT) | 5K/10K | Baker, MT |
| 285 | 07 May 26 | 2026 Cerberus 3-Day Expedition Stage Race | triathlon | New Castle, VA |