Incidents total 1320
| Name | Type | Date |
|---|---|---|
| Balboa positive | Positive test | 05/04/1987 |
| Bahrain Victorious raids | Investigation | 27/06/2022 |
| Bahrain Victorious investigation | Investigation | 03/07/2021 |
| Azcarate positive | Positive test | 12/08/1981 |
| Axelsson positive 2 | Positive test | 20/09/2009 |
| Axelsson positive 1 | Positive test | 14/10/2001 |
| Avila positive | Positive test | 31/05/2021 |
| Averin positive | Positive test | 10/03/2017 |
| Astolfi violation | Violation | 29/04/2003 |
| Astarloza positive | Positive test | 26/06/2009 |
| Astarloza appeal | Appeal against sanction | 28/03/2012 |
| Astarloa irregularities | Violation | 11/05/2008 |
| Astarloa bio-passport | Violation | 17/06/2009 |
| Astana investigation | Investigation | 02/02/2020 |
| Astana auto-suspension | Violation | 10/10/2014 |
| Ascani positive | Positive test | 26/06/2007 |
| Ascani appeal 2 | Appeal against sanction | 16/02/2009 |
| Ascani appeal 1 | Appeal against sanction | 10/05/2008 |
| Arta Terme violations | Violation | 10/06/1988 |
| Arroyo positive | Positive test | 07/05/1982 |
| Arras positive | Positive test | 16/06/1987 |
| Armstrong positive | Positive test | 04/07/1999 |
| Armstrong permanent ban | Permanent ban | 24/08/2012 |
| Armstrong investigation | Investigation | 03/02/2012 |
| Armstrong federal lawsuit | Hearing evidence | 19/04/2018 |
