| Name ▲ | Age | Gender | Owner | Actions |
|---|
| Was It Worth It | 16 | Mare | Final Furlong | |
| Wasabi Sapphire | 12 | Mare | Krajina | |
| Wasn't Edited | 13 | Mare | Final Furlong | |
| Wasn't Me | 18 | Mare | Final Furlong | |
| Watch Me Be Gone | 16 | Mare | Final Furlong | |
| Watch Me Whirl | 11 | Mare | Starfish Stables | |
| Watch My Valentine | 14 | Mare | Tall Oaks Farm | |
| Watch The Silver | 17 | Mare | Final Furlong | |
| Watch The Stars | 11 | Mare | Generous Bloodstock | |
| Watch the Fuse | 11 | Mare | Final Furlong | |
| Watching Moonbeams | 11 | Mare | Marshall Creek Ranch | |
| Watching You | 13 | Mare | Final Furlong | |
| Water Baby | 7 | Mare | Final Furlong | |
| Water Lily | 11 | Mare | Fair Isle Farm | |
| Water Logged | 14 | Mare | Final Furlong | |
| Water's Girl | 13 | Mare | Krajina | |
| Waters Rising | 11 | Mare | Final Furlong | |
| Watershed | 7 | Mare | Final Furlong | |
| Watersong | 16 | Mare | Final Furlong | |
| Wave AWOL | 11 | Mare | Gant's Farm | |