| Name ▼ | Age | Gender | Owner | Actions |
|---|
| Italian Finale | 1 | Filly | Gintara Lodge | |
| Ita Ti Ina | 1 | Colt | Hidden Oak Farm | |
| Isère | 1 | Colt | Generous Bloodstock | |
| Isola di Loretto | 1 | Filly | Generous Bloodstock | |
| Isle of Bright | 1 | Filly | Sakura Springs | |
| Island In The Sky | 1 | Colt | Generous Bloodstock | |
| Iron Maiden | 1 | Filly | Dreadnought | |
| Iron Head | 1 | Colt | Gintara Lodge | |
| Irish Colors | 1 | Filly | Tall Oaks Farm | |
| Irish Cat | 1 | Colt | Hidden Oak Farm | |
| Ipheion | 1 | Colt | Black Storm West | |
| Invierno | 1 | Filly | Denoux Stud | |
| Insane Victor | 1 | Filly | Starfish Stables | |
| Ineffable | 1 | Filly | Cricket Hill | |
| Indy’s Thunder | 1 | Filly | Littlefield | |
| Independence Star | 1 | Filly | Tall Oaks Farm | |
| IncantationOfLuck | 1 | Filly | Black Briar Stables | |
| Inattesa | 4 | Filly | Darkwood Stables | |
| Imperatrice | 1 | Filly | New Boston Stables | |
| Imagined Kiss | 1 | Colt | Sakura Springs | |