| 2971 | 23 Jun 26 | Central Kentucky All-Comers Series Track Meets | track meet | Wilmore, KY |
| 2972 | 19 Sep 26 | Central Michigan HIV/AIDS 5K | 5K | Mount Pleasant, MI |
| 2973 | 04 Oct 26 | Central Park Duathlon/Relay | Sprint Duathlon/Sprint Triathlon Relay | New York, NY |
| 2974 | 06 Jun 26 | Central Square Redhawk 5K | 5K | Central Square, NY |
| 2975 | 02 Aug 26 | Central Upper Peninsula CISM Donut Dash | 1M/5K | Marquette, MI |
| 2976 | 27 Jun 26 | Centurion 33 Hour ultra Trail Race | 33H trail run | Stratford, CT |
| 2977 | 17 Oct 26 | Century Farm Haunted Wine Run 5k | ['5K'] | Jackson, TN |
| 2978 | 11 Oct 26 | Cere-bration Walk, Roll, Run | 1M/5K | Westerville, OH |
| 2979 | 04 Oct 26 | Cere-bration Walk, Roll, Run Akron | 1M/5K | Norton, OH |
| 2980 | 27 Sep 26 | Cere-bration Walk, Roll, Run Cincinnati | 1M/5K | Blue Ash, OH |
| 2981 | 12 Sep 26 | Cere-bration Walk, Roll, Run Mount Vernon | 1M/5K | Mount Vernon, OH |
| 2982 | 13 Jun 26 | Cereal City Classic | 5K/10K | Battle Creek, MI |
| 2983 | 15 Aug 26 | Cereal City KIDS Triathlon | youth triathlon | Battle Creek, MI |
| 2984 | 18 Jul 26 | Cereal City Triathlon & Duathlon | Sprint/Sprint Duathlon/supersprint triathlon | Battle Creek, MI |
| 2985 | 11 Oct 26 | Cerebral Palsy Awareness 5K | 5K | Hamilton, NJ |