| 15886 | 06 Sep 25 | 2025 Dallas Ft. Worth | 1K/5K | Burleson, TX |
| 15887 | 26 Oct 25 | 2025 Crown Point Marathon/Half-Marathon, Team Relays, 8K & 5K Runs | 5K/8K | San Diego, CA |
| 15888 | 27 Nov 25 | 2025 CRC Thanksgiving Day 13.1, 6.2, 3.1 & Fun Run/Walk | 5K/10K | Fort Worth, TX |
| 15889 | 30 Nov 25 | 2025 Cranberry Crawl Turkey Trot 5k/5-Miler/10M | 10K/13.1/5K | Washington, DC |
| 15890 | 14 Sep 25 | 2025 Craig Ranch McKinney Triathlon | triathlon | McKinney, TX |
| 15891 | 18 Oct 25 | 2025 Coronado Heights Run | 5K/15K | Lindsborg, KS |
| 15892 | 14 Sep 25 | 2025 Cool Sommer Mornings Sprint Triathlon, Duathlon & 5K #4 | triathlon | Clermont, FL |
| 15893 | 05 Oct 25 | 2025 Cohutta Triathlon | triathlon | Crandall, GA |
| 15894 | 28 Sep 25 | 2025 Classic City Sprint, Duathlon & Aquabike | triathlon | Athens, GA |
| 15895 | 06 Dec 25 | 2025 Clash Daytona - Saturday Events | triathlon | Daytona Beach, FL |
| 15896 | 06 Sep 25 | 2025 CiderMan Sprint Triathlon | triathlon | Millstadt, IL |
| 15897 | 06 Sep 25 | 2025 Chroma Team Racing Championship . . | triathlon | Nashville, TN |
| 15898 | 24 Dec 25 | 2025 Christmas Eve 5k/10k | 10K/5K | Washington, DC |
| 15899 | 25 Oct 25 | 2025 Chessie Trail Marathon, Half Marathon, 10K, 5K, & 26.2 Relay | 10K/13.1/26.2/5K | Lexington, VA |
| 15900 | 13 Sep 25 | 2025 Chesaning Chamber of Commerce Dry-Tri - SEPTEMBER 13 | triathlon | Chesaning, MI |