| 286 | 02 May 26 | 2026 Citrus Kids Triathlon - Bicentennial Park | triathlon | Crystal River, FL |
| 287 | 29 Mar 26 | 2026 CLASH Endurance Coastal Mississippi | triathlon | Gulfport, MS |
| 288 | 27 Mar 26 | 2026 CLASH Miami Triathlon - Sunday Events | triathlon | Homestead, FL |
| 289 | 20 Jun 26 | 2026 Clemson Triathlon | triathlon | Seneca, SC |
| 290 | 06 Jun 26 | 2026 Colorado Triathlon | triathlon | Boulder, CO |
| 291 | 16 Feb 26 | 2026 Commander-in-Chief Chase 5k/10k | 10K/5K | Spotsylvania, VA |
| 292 | 15 Feb 26 | 2026 Coronado Valentine's Day 10K, 5K and 1 Mile Fun Run/Walk | 5K/10K | Coronado, CA |
| 293 | 26 Jul 26 | 2026 Crescent City Triathlon | triathlon | Crescent, CA |
| 294 | 07 Feb 26 | 2026 CTC Super Bowl Duathlon | triathlon | Clermont, FL |
| 295 | 28 Mar 26 | 2026 Dare to Tri - Fort Gordon | triathlon | Fort Eisenhower, GA |
| 296 | 22 Feb 26 | 2026 Dash Around the Point 5k/10k | 10K/5K | Washington, DC |
| 297 | 16 May 26 | 2026 Dash Through the Dirt 5k/10k/Half | 10K/13.1/5K | Potomac, MD |
| 298 | 10 May 26 | 2026 DC Mother's Day 5k/10k | 10K/5K | Washington, DC |
| 299 | 18 Jul 26 | 2026 Delta Lake Triathlon | triathlon | Rome, NY |
| 300 | 14 Mar 26 | 2026 Derby City 10K | 10K | Louisville, KY |