| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Summoned | chestnut | f | 1978 | Crowned Prince | Sweet Life | Thoroughbred | Avstraliia | |
| Summonit | bay | c | 2020 | 643090000419473 | 1071-5 Sweet Ducky | 5430-7 Tam View | Thoroughbred | Gudermessky Hippodrome |
| Sumota | bay | f | 2023 | 643090000704679 | Will Take Charge | 6669-8 Matsumoto | Thoroughbred | Studfarm "711" |
| Sumoto | bay | f | 1990 | Mtoto | Soemba | Thoroughbred | Great Britain | |
| Sumpter | chestnut | c | 1818 | Sir Archy | Thoroughbred | USA | ||
| Sumptuous | d.-bay | f | 2005 | Hennessy | Belle of Perintown | Thoroughbred | USA | |
| Sumptuous | chestnut | f | 1933 | Papyrus | Praline | Thoroughbred | Great Britain | |
| 3193 Sumrak | d.-bay | c | 1973 | 0652-4 Rodnik | 3080 Skachka | Thoroughbred | Novostavropolsk Stud | |
| 1988 Sumrak | bay | c | 1949 | 1917 Ex Szamuraj | 1280 Maribor | Thoroughbred | Onufrievsk Stud | |
| Sumrak | bay | c | 2012 | 643110000011304 | 0659-4 Mojgan | 3318-5 Sagahala | Thoroughbred | Stud-farm "Stavropolskiy 170" |