| Name ▲ | Age | Gender | Owner | Actions |
|---|---|---|---|---|
| Appraisal | 13 | Stallion | Rainee Thoroughbreds | View |
| Appreciation | 7 | Stallion | Dreadnought | View |
| Approved Rumor | 17 | Stallion | Final Furlong | View |
| April 28th | 8 | Mare | AllegroThoroughbreds | View |
| April Fool | 9 | Stallion | Hidden Oak Farm | View |
| April Fools' Day | 11 | Gelding | Generous Bloodstock | View |
| April Sun In Cuba | 14 | Gelding | Krajina | View |
| Ch. Apt Witness | 16 | Gelding | Gant's Farm | View |
| Ch. Aptitude Act | 11 | Stallion | Krajina | View |
| Ara's Spirit | 17 | Stallion | Final Furlong | View |
| Ch. Arabian Knight | 11 | Stallion | Krajina | View |
| Ch. Aragog | 6 | Stallion | Dreadnought | View |
| Aragon's Pride | 18 | Gelding | Final Furlong | View |
| Aragorn | 14 | Stallion | Final Furlong | View |
| Araldo | 9 | Stallion | Lochiedo Stables | View |
| Arbatel | 8 | Stallion | Rainee Thoroughbreds | View |
| Ch. Arc de Triomphe | 11 | Stallion | Starfish Stables | View |
| Arc of Hogsmeade | 7 | Stallion | Starfish Stables | View |
| Arcadia | 8 | Mare | Fair Isle Farm | View |
| Arcane | 9 | Stallion | Hidden Oak Farm | View |