| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Wedding Ring | 11 | Mare | Krajina | |
| Weekend Eight | 13 | Mare | Final Furlong | |
| Weekend Ritual | 16 | Mare | Final Furlong | |
| Weekendonthemoon | 7 | Mare | New Boston Stables | |
| Wegotta | 15 | Mare | Krajina | |
| Weird Magic | 6 | Mare | Generous Bloodstock | |
| Weird Science | 19 | Mare | Final Furlong | |
| Welcome Stranger | 12 | Mare | Ivy Creek Farm | |
| WelcometotheJungle | 13 | Mare | Final Furlong | |
| Well Behaved | 16 | Mare | Final Furlong | |
| Well Enough Alone | 13 | Mare | Krajina | |
| Well of Light | 11 | Mare | Final Furlong | |
| Welsh Dragon | 8 | Mare | Starfish Stables | |
| Wendy Darling | 20 | Mare | Final Furlong | |
| West Allis | 14 | Mare | Final Furlong | |
| West Coast Swing | 8 | Mare | Final Furlong | |
| West Ham | 13 | Mare | Krajina | |
| West Highland Line | 7 | Mare | AllegroThoroughbreds | |
| Westerly | 17 | Mare | Final Furlong | |
| Western Dreams | 18 | Mare | Final Furlong | |