Incidents total 1371
| Name | Type | Date |
|---|---|---|
| Chotard positive | Positive test | 13/05/2001 |
| Cima positive | Positive test | 22/05/1982 |
| Cioni violation | Violation | 01/10/2004 |
| Cipollini positive | Positive test | 17/07/1998 |
| Clavero violation | Violation | 25/09/1998 |
| Clerc positive | Positive test | 09/07/1983 |
| Cobo bio-passport | Violation | 13/06/2019 |
| Coconi suspension | Permanent ban | 21/04/2008 |
| Cocquyt positive | Positive test | 24/03/1988 |
| Cofidis arrests | Arrest | 07/05/1999 |
| Cofidis convictions | Criminal conviction | 19/01/2007 |
| Cofidis pharmacy search | Investigation | 28/04/2004 |
| Cofidis raids | Investigation | 12/01/2004 |
| Cofidis resignations | Termination of contract | 05/05/2004 |
| Cofidis seizures | Investigation | 11/09/1998 |
| Cofidis team suspension | Temporary suspension | 09/04/2004 |
| Coletta positive | Positive test | 21/04/2007 |
| Coll violation | Violation | 20/08/1981 |
| Colò positive | Positive test | 25/04/2010 |
| Colom positive | Positive test | 02/04/2009 |
