| Name ▼ | Age | Gender | Owner | Actions |
|---|
| Arien | 15 | Mare | Final Furlong | |
| Ariella | 9 | Mare | Marshall Creek Ranch | |
| Ariel | 11 | Mare | Gintara Lodge | |
| Ariadne | 14 | Mare | Final Furlong | |
| Aria | 11 | Mare | Sakura Springs | |
| Argus Array | 13 | Mare | New Boston Stables | |
| Arguru | 6 | Mare | AllegroThoroughbreds | |
| Argonaut | 7 | Mare | Denoux Stud | |
| Argentina Moon | 11 | Mare | AllegroThoroughbreds | |
| Argelian | 15 | Mare | Tall Oaks Farm | |
| Arenzano | 11 | Mare | Gintara Lodge | |
| Aren't I A Doll | 10 | Mare | Black Storm West | |
| Areion | 15 | Mare | Desert Wind Farm | |
| Areasonforroses | 15 | Mare | Kismet Thoroughbreds | |
| Are You Worthy | 8 | Mare | Final Furlong | |
| Ardiente | 16 | Mare | Black Briar Stables | |
| Ardent Writer | 9 | Mare | Final Furlong | |
| Ardent Vase | 12 | Mare | Final Furlong | |
| Ardent South | 11 | Mare | Krajina | |
| Ardent Partner | 10 | Mare | Final Furlong | |