| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Ara's Spirit | 16 | Stallion | Final Furlong | |
| Arabian Fire | 13 | Gelding | Krajina | |
| Aragon's Pride | 17 | Gelding | Final Furlong | |
| Aragorn | 13 | Stallion | Final Furlong | |
| Araldo | 8 | Stallion | Lochiedo Stables | |
| Arbatel | 7 | Stallion | Rainee Thoroughbreds | |
| Arc de Triomphe | 10 | Stallion | Starfish Stables | |
| Arc of Hogsmeade | 6 | Stallion | Starfish Stables | |
| Arcadia | 7 | Mare | Fair Isle Farm | |
| Arcane | 8 | Stallion | Hidden Oak Farm | |
| Arcane Music | 13 | Stallion | Final Furlong | |
| Arcane Rituals | 7 | Stallion | Dreadnought | |
| Archaeopteryx | 16 | Gelding | Generous Bloodstock | |
| Archangel | 11 | Stallion | Kismet Thoroughbreds | |
| Archangel Raphael | 12 | Stallion | Final Furlong | |
| Archangel Rising | 14 | Stallion | Final Furlong | |
| Archduke | 10 | Stallion | Denoux Stud | |
| Archer | 13 | Stallion | Final Furlong | |
| Archer Rock | 6 | Stallion | Cricket Hill | |
| Archery | 21 | Gelding | Final Furlong | |