| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Upper Circle | bay | f | 1987 | Shirley Heights | Odeon | Thoroughbred | Great Britain | |
| Upper Glory | bay | f | 2019 | 643090000184885 | 1030-5 Golan | 5582-7 Upper Jem | Thoroughbred | Svobodny Trud Farm |
| 5582-7 Upper Jem | bay | f | 2008 | 985101045143309 | Bertolini | Daisycutter | Thoroughbred | S C E A des Bissons |
| Upper Nile | c | 1974 | Nijinsky II | Rosetta Stone | Thoroughbred | USA | ||
| Upper Strata | bay | f | 1985 | Shirley Heights | Bright Landing | Thoroughbred | Great Britain | |
| Uprava | chestnut | f | 1993 | 3510-1 White Reef | 7437-1 Belgiya | Thoroughbred | APK "Kavkaz" | |
| Uprava | dark chestnut | f | 2012 | 972270000151215 | 0932-5 Polo | 1105-3 Udachnaya | Thoroughbred | Svobodny Trud Farm |
| Upravitelnitsa | chestnut | f | 2016 | 643090000030055 | 0564-4 Plov | 2558-4 Uenna | Thoroughbred | Mr Tharkakhov N.H. |
| Ups | bay | c | 1968 | Deming | Malestrella | Thoroughbred | Peru | |
| Upsala | d.-bay | f | 1990 | Who Knows | Uferschwalbe | Thoroughbred | Poland |