| Name ▲ | Age | Gender | Owner | Actions |
|---|---|---|---|---|
| April Thunder | 5 | Mare | Black Briar Stables | View |
| Aprilia | 3 | Filly | New Boston Stables | View |
| Aptitude Act | 10 | Stallion | Krajina | View |
| Aquaman | 2 | Colt | Starfish Stables | View |
| Aquaris | 5 | Stallion | Tall Oaks Farm | View |
| Aqui y Ahora | 7 | Stallion | Gant's Farm | View |
| Arabesque | 3 | Filly | Starfish Stables | View |
| Arabian Knight | 10 | Stallion | Krajina | View |
| Arabian Night | 8 | Stallion | Final Furlong | View |
| Arabian Stars | 6 | Mare | Final Furlong | View |
| Aracari | 3 | Colt | Black Storm West | View |
| Aragog | 5 | Stallion | Dreadnought | View |
| Arai | 4 | Stallion | Cricket Hill | View |
| Arak | 6 | Mare | New Boston Stables | View |
| Aransas Bay | 2 | Colt | Viscount Lodge | View |
| Arbuscular | 5 | Stallion | Krajina | View |
| Arcade | 4 | Stallion | AllegroThoroughbreds | View |
| Arcana | 3 | Filly | Hidden Oak Farm | View |
| Archie | 6 | Stallion | Final Furlong | View |
| Archimonde | 4 | Stallion | Desert Wind Farm | View |