| Sea Of Class | |
|---|---|
 Racing silks of Sunderland Holding Inc | |
| Sire | Sea the Stars |
| Grandsire | Cape Cross |
| Dam | Holy Moon |
| Damsire | Hernando |
| Sex | Filly |
| Foaled | 23 May 2015[1] |
| Died | 22 July 2019 (aged 4) |
| Country | Ireland |
| Colour | Chestnut |
| Breeder | Razza del Velino SRL |
| Owner | Sunderland Holding Inc |
| Trainer | William Haggas |
| Record | 7: 4-2-0 |
| Earnings | £1,501,911 |
| Major wins | |
| Fillies' Trial Stakes (2018) Abingdon Stakes (2018) Irish Oaks (2018) Yorkshire Oaks (2018) | |
Sea Of Class (23 May 2015 – 22 July 2019) was an Irish-bred British-trained Thoroughbred racehorse. She was unraced as a juvenile and beaten on her three-year-old debut, but then made rapid progress, winning the Fillies' Trial Stakes in May and the Abingdon Stakes in June. When stepped up to Group 1 class she defeated top-class fields to take the Irish Oaks in July and the Yorkshire Oaks in August before being narrowly beaten in the Prix de l'Arc de Triomphe. She died on 22 July 2019 after undergoing surgery to remove a tumour from her gut.
- ^ "Sea of Class pedigree". Equineline.