| 16531 | 08 Aug 26 | Cerveza Shuffle | 1K/5K/10K | Saratoga Springs, NY |
| 16532 | 23 May 26 | Cerro Gordo Silver Run | 8M | Keeler, CA |
| 16533 | 30 May 26 | Cerritos 5K Celebrate in Stride Moo-ve with the Herd | 5K | Cerritos, CA |
| 16534 | 11 Oct 26 | Cerebral Palsy Awareness 5K | 5K | Hamilton, NJ |
| 16535 | 18 Jul 26 | Cereal City Triathlon & Duathlon | Sprint/Sprint Duathlon/supersprint triathlon | Battle Creek, MI |
| 16536 | 13 Jun 26 | Cereal City Classic | 5K/10K | Battle Creek, MI |
| 16537 | 12 Sep 26 | Cere-bration Walk, Roll, Run Mount Vernon | 1M/5K | Mount Vernon, OH |
| 16538 | 27 Sep 26 | Cere-bration Walk, Roll, Run Cincinnati | 1M/5K | Blue Ash, OH |
| 16539 | 04 Oct 26 | Cere-bration Walk, Roll, Run Akron | 1M/5K | Norton, OH |
| 16540 | 11 Oct 26 | Cere-bration Walk, Roll, Run | 1M/5K | Westerville, OH |
| 16541 | 17 Oct 26 | Century Farm Haunted Wine Run 5k | ['5K'] | Jackson, TN |
| 16542 | 27 Jun 26 | Centurion 33 Hour ultra Trail Race | 33H trail run | Stratford, CT |
| 16543 | 06 Jun 26 | Central Square Redhawk 5K | 5K | Central Square, NY |
| 16544 | 04 Oct 26 | Central Park Duathlon/Relay | Sprint Duathlon/Sprint Triathlon Relay | New York, NY |
| 16545 | 19 Sep 26 | Central Michigan HIV/AIDS 5K | 5K | Mount Pleasant, MI |