| Name ▲ | Age | Gender | Owner | Actions |
|---|---|---|---|---|
| Arabian Night | 9 | Stallion | Final Furlong | View |
| Aracari | 4 | Stallion | Black Storm West | View |
| Arai | 5 | Stallion | Cricket Hill | View |
| Arak | 7 | Mare | New Boston Stables | View |
| Aransas Bay | 3 | Colt | Viscount Lodge | View |
| Arbiter | 2 | Colt | Hidden Oak Farm | View |
| Arbuscular | 6 | Stallion | Krajina | View |
| Arcade | 5 | Stallion | AllegroThoroughbreds | View |
| Arcana | 4 | Mare | Hidden Oak Farm | View |
| Archeologist | 2 | Colt | Gotapa Racing | View |
| Archie | 7 | Stallion | Final Furlong | View |
| Archimonde | 5 | Stallion | Desert Wind Farm | View |
| Arcite | 6 | Mare | New Boston Stables | View |
| Arctic | 9 | Mare | Vimes Racing | View |
| Arctic Fairy | 6 | Mare | Denoux Stud | View |
| Arctiinae | 2 | Filly | Gintara Lodge | View |
| Arda's Promise | 5 | Stallion | Tall Oaks Estate | View |
| Ardent Bubble | 8 | Stallion | Final Furlong | View |
| Ardent Clock | 8 | Stallion | Final Furlong | View |
| Ardent Direction | 4 | Stallion | Gant's Farm | View |