| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Bachelor Party | 19 | Stallion | Final Furlong | |
| Bacillus | 19 | Gelding | Final Furlong | |
| Back For More | 16 | Mare | Starfish Stables | |
| Back In Black | 17 | Gelding | Final Furlong | |
| Back North | 16 | Mare | Final Furlong | |
| Back Roads | 18 | Gelding | Final Furlong | |
| Back St. Flight | 13 | Mare | Starfish Stables | |
| Back St. Warrior | 13 | Mare | Starfish Stables | |
| Back Streets | 20 | Mare | Starfish Stables | |
| Back To School | 19 | Mare | Final Furlong | |
| Back To The Future | 15 | Gelding | Final Furlong | |
| Back to Cashel | 17 | Mare | Final Furlong | |
| Back to Omaha | 21 | Mare | Final Furlong | |
| Backseat Driver | 22 | Stallion | Final Furlong | |
| Backseat Exit | 16 | Gelding | Final Furlong | |
| Backseat Rogue | 17 | Stallion | Final Furlong | |
| Backstage Pass | 23 | Mare | Final Furlong | |
| BacktotheBlues | 16 | Mare | Final Furlong | |
| Backwards Image | 24 | Mare | Coleman Branch | |
| Backyard Fire | 22 | Gelding | Final Furlong | |