| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Summerleaze | grey | f | 1941 | Fair Trial | Somerhill | Thoroughbred | Great Britain | |
| Summerosa | chestnut | f | 1994 | Woodman | Rose Red | Thoroughbred | USA | |
| Summersault | bay | f | 1894 | Thoroughbred | Great Britain | |||
| Summertime legacy | bay | f | 1999 | Darshaan | Zawaahy | Thoroughbred | Great Britain | |
| 2086-4 Summertime Love | bay | f | 2003 | Not For Love | Sudenlylastsummer | Thoroughbred | USA | |
| Summertime Promise | bay | f | 1972 | Nijinsky II | Prides Promise | Thoroughbred | USA | |
| Summertime Showers | d.-bay | f | 1987 | Raise a Native | White Reason | Thoroughbred | USA | |
| Summing | bay | c | 1978 | Verbatim | Sumatra | Thoroughbred | USA | |
| Summit | chestnut | f | 1918 | Ultimus | Torpenhow | Thoroughbred | USA | |
| Summit Park | bay | f | 1995 | A.P. Indy | Gold and Purple | Thoroughbred | USA |