| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Winning Quest | 10 | Mare | Final Furlong | |
| Winning Rainbow | 11 | Mare | Black Briar Stables | |
| Winning Secret | 18 | Mare | Mayfair | |
| Winning Shot | 18 | Mare | Final Furlong | |
| Winston | 13 | Mare | Final Furlong | |
| Winter Bloom | 11 | Mare | Final Furlong | |
| Winter Chill | 13 | Mare | Final Furlong | |
| Winter Gem | 18 | Mare | Final Furlong | |
| Winter Joy | 21 | Mare | Final Furlong | |
| Winter Morn | 19 | Mare | Final Furlong | |
| Winter Queen | 13 | Mare | Starfish Stables | |
| Winter Solace | 18 | Mare | Final Furlong | |
| Winter Solstice | 12 | Mare | Tall Oaks Farm | |
| Winter Velvet | 17 | Mare | Final Furlong | |
| Winterhart | 18 | Mare | Final Furlong | |
| Winterspell | 8 | Mare | Final Furlong | |
| Winterthur | 18 | Mare | Final Furlong | |
| Wintertime Victory | 13 | Mare | Final Furlong | |
| Wipe the Slate | 9 | Mare | Hidden Oak Farm | |
| Wired Energy | 13 | Mare | Hidden Oak Farm | |