Horses can be placed on this list for reasons of illness, overall soundness or fitness to race.
| Horse Name | Horse Breed | Date On | Track On | Date Off | Official Vet Exam | Work | Qualify | Vet List Type |
|---|---|---|---|---|---|---|---|---|
| Snack Daddy | Thoroughbred | Fort Erie Racetrack | Yes | X | ||||
| SNICKER | Standardbred | The Raceway at Western Fair District | Yes | X | Long List | |||
| Snow Bullet | Quarter Horse | Ajax Downs | No | X | ||||
| Snow Scene | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| Snowy Legacy | Thoroughbred | Fort Erie Racetrack | No | X | ||||
| So Jess a Fancy Lady | Quarter Horse | Ajax Downs | No | |||||
| SO STRANGE | Standardbred | Clinton Raceway | No | Short List | ||||
| Soexotic | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| Solar | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| SOLID MAN | Standardbred | Rideau Carleton Raceway | No | X | Long List | |||
| Solis | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| Somersby | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| SOMEWHERENTUSCANY | Standardbred | Flamboro Downs | Yes | X | Long List | |||
| Sonja's Joy | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| Sophias Dream | Thoroughbred | Fort Erie Racetrack | No | X | ||||
| Southern Diva | Thoroughbred | Fort Erie Racetrack | No | X | ||||
| Southern Style | Thoroughbred | Woodbine Racetrack | Yes | X | ||||
| SOUTHWIND AVENGER | Standardbred | Mohawk Park | No | X | Long List | |||
| Sovereign Tale | Thoroughbred | Fort Erie Racetrack | Yes | X | ||||
| Sox and Sandals | Thoroughbred | Fort Erie Racetrack | Yes | X |