| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Aftermath | 11 | Mare | Marshall Creek Ranch | |
| Against the House | 13 | Mare | Gant's Farm | |
| Age of Mythology | 13 | Mare | Final Furlong | |
| Aged Gold | 10 | Mare | Final Furlong | |
| Agent Carter | 11 | Mare | Final Furlong | |
| Aggressive Fight | 9 | Mare | Final Furlong | |
| Aggressive Galaxy | 12 | Mare | Final Furlong | |
| Aggressive Heat | 12 | Mare | Final Furlong | |
| Aggressive Home | 11 | Mare | Final Furlong | |
| Aggressive Honey | 11 | Mare | Black Briar Stables | |
| Aggressive Joke | 7 | Mare | Tall Oaks Estate | |
| Aggressive Name | 9 | Mare | Final Furlong | |
| Aggressive Number | 11 | Mare | Final Furlong | |
| Agnes Liner | 16 | Mare | Gant's Farm | |
| Agreeable Action | 11 | Mare | Final Furlong | |
| Agreeable Bell | 11 | Mare | Kismet Thoroughbreds | |
| Agreeable Bird | 7 | Mare | Final Furlong | |
| Agreeable Cent | 7 | Mare | Final Furlong | |
| Agreeable History | 12 | Mare | Gintara Lodge | |
| Agreeable Look | 7 | Mare | Final Furlong | |