| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 0325-3 Sort | chestnut | c | 1996 | 3749-1 Observation Post | 5729-1 Semra | Thoroughbred | Voskhod Stud | |
| 0612-4 Sort It Out | chestnut | c | 2002 | 643110000011986 | Out of Place | Vex | Thoroughbred | USA |
| Sortavala | bay | f | 2022 | 900233000295869 | 1523-7 Real Furor | 3379-5 Strike Ready | Thoroughbred | Mr Bondarenko S.V. |
| Sorus | bay | c | 2000 | 0656-4 Radius | 0664-2 Sensatziya | Thoroughbred | Streletsk Stud | |
| Sorvand | black | c | 2001 | 0022-2 Baltimor | 7989 Studiya | Thoroughbred | Streletsk Stud | |
| 1832-4 Sorvar | chestnut | f | 2000 | 643094100001317 | Victory Piper | 0653-2 Sarga | Thoroughbred | Rodina Farm |
| Sorvi-Golova | black | f | 1887 | Fogabal | Roza-Slavianka | Thoroughbred | u Ilenko I.M. | |
| 1503 Sosani | black | f | 1939 | 1162 Caymanas | 715 Sabie | Thoroughbred | Muhrovansk Stud | |
| Sosedka | br. | f | 1985 | 0165-2 Skald | 5283 Selena | Thoroughbred | Issyk-Kul Stud | |
| Sosedka | chestnut | f | 2015 | 0972-5 Statskiy Sovetnik | 1812-4 Sinica | Thoroughbred | Chapaev Farm |