| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 1237-3 Syringa Sue | bay | f | 1994 | 643094100002430 | Carnivalay | Bes | Thoroughbred | USA |
| 756 Syrty | d.-bay | f | 1932 | 243 Barbe | 297 Saga | Thoroughbred | Issyk-Kul Stud | |
| Syrya | bay | f | 2007 | 643098100100888 | 0371-3 Redut | 10785 Susha | Thoroughbred | Mr. Novikov S.V. |
| Systematic | bay | c | 1999 | Rainbow Quest | Sensation | Thoroughbred | Great Britain | |
| 0694-2 Syuita | d.-bay | f | 1995 | 3335-1 Whitstead | 6844-1 Sekta | Thoroughbred | APK "Kavkaz" | |
| Syumet | chestnut | f | 2022 | 643090000562018 | 1171-6 Flash of Hope | 4449-6 Samanta Met | Thoroughbred | Mr. Hahalev R.O. |
| Syurprayz | bay | c | 2009 | 0463-4 Iurt | 8030-1 Semantika | Thoroughbred | Russia | |
| Syurpriz | d.-bay | c | 1992 | 3476 Sadok | 5172 Kirgiziya | Thoroughbred | Ispravnoe Farm | |
| Syurpriz | black | c | 1988 | 3178-1 Zotos | 4480 Serebryanka | Thoroughbred | Streletsk Stud | |
| 185 Syurpriz | bay | c | 1910 | Saltpetre | Skrynya | Thoroughbred |