Races
| Race | Dist | Terrain | Club | Actions |
|---|---|---|---|---|
| Clumber 10K | 10K | Trail | ||
| Clwydian Hills Fell Race | 14.5K | Fell | ||
| Coalville 10k | 10K | Mixed | ||
| Coillte 10K | 10K | Road | ||
| Colchester Zoo Stampede 10K | 10K | Road | ||
| Coleraine Classic 5M | 5M | Road | ||
| Colin Potter 10K | 10K | Road | ||
| Cologne Marathon | M | Road | ||
| Colshaw Hall 10k | 10K | Road | ||
| Colwick HP GP 5M | 5M | Road |