| 11236 | 15 Feb 26 | 2026 Coronado Valentine's Day 10K, 5K and 1 Mile Fun Run/Walk | 5K/10K | Coronado, CA |
| 11237 | 06 Jun 26 | 2026 Colorado Triathlon | triathlon | Boulder, CO |
| 11238 | 20 Jun 26 | 2026 Clemson Triathlon | triathlon | Seneca, SC |
| 11239 | 27 Mar 26 | 2026 CLASH Miami Triathlon - Sunday Events | triathlon | Homestead, FL |
| 11240 | 02 May 26 | 2026 Citrus Kids Triathlon - Bicentennial Park | triathlon | Crystal River, FL |
| 11241 | 09 May 26 | 2026 Cinco de Miler | 1M | Chicago, IL |
| 11242 | 26 Jul 26 | 2026 Chisago Lakes Triathlon - Sunday | triathlon | Chisago, MN |
| 11243 | 15 Feb 26 | 2026 Chilly Willy Duathlon | triathlon | St Petersburg, FL |
| 11244 | 21 Feb 26 | 2026 Chilly Cheeks Winter Duathlon & 4 Mile Run | triathlon | Englewood, CO |
| 11245 | 10 Jan 26 | 2026 Chill Chase 5k/10k | 10K/5K | College Park, MD |
| 11246 | 31 Jan 26 | 2026 Cherrylake Farm Races | triathlon | Groveland, FL |
| 11247 | 07 May 26 | 2026 Cerberus 3-Day Expedition Stage Race | triathlon | New Castle, VA |
| 11248 | 03 Oct 26 | 2026 Center of the Nation Series - Day 6 (MT) | 5K/10K | Baker, MT |
| 11249 | 02 Oct 26 | 2026 Center of the Nation Series - Day 5 (ND) | 5K/10K | Bowman, ND |
| 11250 | 01 Oct 26 | 2026 Center of the Nation Series - Day 4 (SD) | 5K/10K | Belle Fourche, SD |