| Angela APARECIDA ELIAS DE SILVA | BRA | 2 Races |
| Alan APOLLONIO | SLO | 35 Races |
| Juris APTERS | LAT | 7 Races |
| Marco APURA | POR | 18 Races |
| Omar AQUINO | VEN | 7 Races |
| Larisa ARAKCHEEVA | RUS | 2 Races |
| Gyanjit Singh ARAMBAM | IND | 4 Races |
| Gyangit ARAMBAM | IND | 5 Races |
| Chinghchingh ARAMBAM | IND | 6 Races |
| Davide ARCI | ITA | 6 Races |
| Ana ARELLANO GONZALEZ | MEX | 2 Races |
| Carlos AREVALO | ESP | 25 Races |
| Caroline ARFT | GER | 11 Races |
| Keigo ARIMURA | JPN | 2 Races |
| Ann Marie ARMSTRONG | USA | 2 Races |