| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Audrey Hepburn | 6 | Mare | Dreadnought | |
| Auf Wiedersehen | 16 | Stallion | Final Furlong | |
| Aufeinander | 7 | Stallion | Dreadnought | |
| Augury | 3 | Colt | Dreadnought | |
| August Rush | 17 | Stallion | Final Furlong | |
| Aulularia | 9 | Mare | Black Storm West | |
| Aurelio | 11 | Stallion | Final Furlong | |
| Auricomous Show | 15 | Gelding | Final Furlong | |
| Auron | 16 | Gelding | Final Furlong | |
| Aurora Code | 16 | Mare | Gant's Farm | |
| Auspicious Idea | 12 | Stallion | Final Furlong | |
| Auspicious Twist | 7 | Stallion | Dreadnought | |
| Aussie | 11 | Stallion | Final Furlong | |
| Aussie Onyx | 6 | Mare | Lochiedo Stables | |
| Australian Crawl | 7 | Mare | Rainee Thoroughbreds | |
| Authoritarian | 11 | Stallion | Final Furlong | |
| Authorized | 18 | Gelding | Final Furlong | |
| Autograph Hunter | 20 | Gelding | Final Furlong | |
| Autumn Cat | 17 | Stallion | Black Storm West | |
| Autumn Equinox | 5 | Mare | Black Briar Stables | |