| Name ▲ | Age | Gender | Owner | Actions |
|---|---|---|---|---|
| Xanthan Gum | 6 | Mare | Gant's Farm | View |
| Xanthos | 8 | Stallion | Final Furlong | View |
| Xaspian | 8 | Stallion | Krajina | View |
| Xaxaba | 6 | Mare | Gant's Farm | View |
| Xayabury | 6 | Stallion | Gant's Farm | View |
| Xcience Guy | 7 | Stallion | Hidden Oak Farm | View |
| Xenophilius | 7 | Stallion | Stillwater Farms | View |
| Xerneas | 2 | Colt | Denoux Stud | View |
| Xiaolongbao | 2 | Colt | New Boston Stables | View |
| Xingjiao Temple | 7 | Mare | Ivy Creek Farm | View |
| Xiuhpohualli | 2 | Filly | Clicker Lab | View |
| Xiuhtecuhtli | 2 | Colt | Black Briar Stables | View |
| Xochimilco | 6 | Stallion | Gant's Farm | View |
| Xochipilli | 2 | Colt | Clicker Lab | View |
| Xochiquetzal | 2 | Filly | Clicker Lab | View |
| Xochitepec | 2 | Colt | Clicker Lab | View |
| Xolotl | 2 | Colt | Clicker Lab | View |
| Xylems | 6 | Mare | Gant's Farm | View |
| Yadkin | 5 | Stallion | Marshall Creek Ranch | View |
| Yakin | 2 | Filly | Clicker Lab | View |