Incidents total 1309
| Name | Type | Date |
|---|---|---|
| Coll violation | Violation | 20/08/1981 |
| Colò positive | Positive test | 25/04/2010 |
| Colom positive | Positive test | 02/04/2009 |
| Colombo violation | Violation | 09/03/1997 |
| Commesso suspension | Temporary suspension | 23/05/2000 |
| Como and Bergamo gym raids | Investigation | 24/07/2005 |
| Contador appeal 1 | Appeal against sanction | 14/02/2011 |
| Contador appeal 2 | Appeal against sanction | 06/02/2012 |
| Contador decision | Temporary suspension | 25/01/2011 |
| Contador positive | Positive test | 21/07/2010 |
| Conti, S positive | Positive test | 13/08/2016 |
| Contini positive | Positive test | 24/07/1987 |
| Convalle admission 1 | Admission statement | 02/01/1997 |
| Convalle admission 2 | Admission statement | 09/04/2002 |
| Cooman positive 1 | Positive test | 07/06/1991 |
| Cooman positive 2 | Positive test | 08/06/1991 |
| Cornelissen positive | Positive test | 09/03/2002 |
| Cornelissen violation | Violation | 09/03/2002 |
| Corredor positive | Positive test | 24/04/1987 |
| Correia Diniz bio-passport irregularities | Violation | 23/03/2017 |
| Costa, M positive | Positive test | 26/06/2010 |
| Costa, R positive | Positive test | 26/06/2010 |
| Crawford admission | Admission statement | 05/12/2012 |
| Criquielion adverse analytical finding | Adverse analytical finding | 23/06/1985 |
| CSC doping | Hearing evidence | 14/08/2004 |
