Sinead O'Sullivan
| Hometown: | Worcester, Mass. |
| Position: | Novice |
| Year: | Jr. |
| High School: | F. W. Parker Essential School |
| Major: | Psychology and Sociology |
2018-2019: First place in Walk-Trot-Canter at Worcester State Show ... Fifth place in Walk-Trot-Canter in Holiday Tournament of Champions Show ... First place in Walk-Trot-Canter in Winter II Tournament of Champions ... Second place in Collegiate Cup Walk-Trot-Canter at Zone 1 Championships ...
Before Mount Holyoke: Member of riding team throughout four years of high school ...
Personal: Psychology and Sociology double majors ... Club dressage team ... IHSA academic award ... Child of Jono O'Sullivan and Erika Beecher.
2017-18 Statistics
| Event | Division | Place |
| Preseason Tournament of Champions Show | ||
| Williams Show | Walk-Trot Canter | 2nd |
| UMass Show | -- | -- |
| Mount Holyoke Show | -- | -- |
| Smith Show | Walk-Trot Canter | 1st |
| Amherst Show | -- | -- |
| Mount Holyoke Show | -- | -- |
| Holiday Tournament of Champions Show | Walk-Trot Canter | 2nd |
| Winter I Tournament of Champions Show | -- | -- |
| Winter ll Tournament of Champions Show | Walk-Trot-Canter | 3rd |
| URI Invitational | Walk-Trot-Canter | 3rd |
| Smith College Show | Walk-Trot-Canter | 1st |
| Mount Holyoke College Show | ||
| Hampshire College Show at University of Massachusetts | ||
| Regional Championships | ||
| Zone 1 Championships | ||
| IHSA National Championships | ||
