| Burnham soul sisters | 1 | View |
| BUTCH DADS CLUB | 1 | View |
| Butterfly Conservation | 1 | View |
| Cambourne Runners ARC | 4 | View |
| Cambridge HHH | 1 | View |
| Cambridge Running Club | 1 | View |
| Cardiac Athletes | 8 | View |
| caroline groeneboom | 0 | View |
| Carroll | 1 | View |
| Carshalton Running Club | 1 | View |
| Chippenham Harriers Youth | 4 | View |
| Cholrye Atletics and Triathlon | 2 | View |
| CHRG | 1 | View |
| Chris Brown | 2 | View |
| City of Norwich Athletics club | 8 | View |
| Claire Bartram | 0 | View |
| Claire Curtin | 0 | View |
| Claire Melia | 0 | View |
| Clarendon Lodge Medical Practice Fitness Club | 6 | View |
| Cobra | 3 | View |