| Name ▲ | Age | Gender | Owner | Actions |
|---|---|---|---|---|
| Wyoming | 8 | Stallion | Final Furlong | View |
| Wyvern | 2 | Filly | Hidden Oak Farm | View |
| X's and O's | 5 | Mare | Gant's Farm | View |
| X-Ray Eyes | 5 | Colt | Gant's Farm | View |
| XD | 4 | Stallion | Black Storm West | View |
| Xanino | 11 | Stallion | Final Furlong | View |
| Xanthan Gum | 5 | Filly | Gant's Farm | View |
| Xanthos | 7 | Stallion | Final Furlong | View |
| Xaspian | 7 | Stallion | Krajina | View |
| Xaxaba | 5 | Mare | Gant's Farm | View |
| Xayabury | 5 | Colt | Gant's Farm | View |
| Xcience Guy | 6 | Stallion | Hidden Oak Farm | View |
| Xenophilius | 6 | Stallion | Stillwater Farms | View |
| Xerxes | 10 | Gelding | Gant's Farm | View |
| Xingjiao Temple | 6 | Mare | Ivy Creek Farm | View |
| Xochimilco | 5 | Colt | Gant's Farm | View |
| Xray | 8 | Mare | Viscount Lodge | View |
| Xylems | 5 | Filly | Gant's Farm | View |
| Xylophone | 10 | Gelding | Final Furlong | View |
| Yadkin | 4 | Stallion | Marshall Creek Ranch | View |