| Name ▲ | Age | Gender | Owner | Actions |
|---|---|---|---|---|
| Unique Match | 10 | Stallion | Gant's Farm | View |
| Unique Path | 3 | Colt | AllegroThoroughbreds | View |
| Unique Streak | 3 | Colt | Rainee Thoroughbreds | View |
| Unique Talent | 2 | Filly | Gintara Lodge | View |
| Unique Visitor | 5 | Stallion | Port Pirie | View |
| United | 3 | Colt | Dreadnought | View |
| Universal Appeal | 2 | Filly | Hidden Oak Farm | View |
| University Park | 6 | Mare | Gant's Farm | View |
| Unknown Act | 5 | Stallion | Gintara Lodge | View |
| Unknown Caption | 4 | Stallion | Gant's Farm | View |
| Unknown Fly | 4 | Stallion | Gant's Farm | View |
| Unknown Hogwarts | 2 | Filly | Starfish Stables | View |
| Unknown Horizons | 6 | Stallion | Rainee Thoroughbreds | View |
| Unknown Invention | 3 | Colt | Final Furlong | View |
| Unknown Memory | 2 | Colt | Desert Wind Farm | View |
| Unknown Mint | 2 | Filly | Krajina | View |
| Unknown Money | 4 | Mare | Gant's Farm | View |
| Unknown Reaction | 4 | Stallion | Littlefield | View |
| Unknown Ring | 8 | Stallion | Gant's Farm | View |
| Unknown Shore | 6 | Gelding | Viscount Lodge | View |