| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| 1209 The Recorder | chestnut | c | 1927 | Captain Cuttle | Lady Juror | Thoroughbred | Great Britain | |
| The Rhymer | chestnut | c | 1938 | St. Germans | Rhythmic | Thoroughbred | USA | |
| 1476-7 The Riddler | bay | c | 2005 | Daylami | Wimple | Thoroughbred | Ireland | |
| The Royal Heart | ches. in mixed | f | 2021 | 643090000484962 | 1902-8 Ringside Seat | 5656-7 Dally Mine | Thoroughbred | Mr Botashev D.Kh. |
| The Ruby Mare | f | Huttons Blacklegs | Bay Bolton Mare | Thoroughbred | Great Britain | |||
| The Ruler | chestnut | c | 1819 | Thoroughbred | Great Britain | |||
| The Saddler | br. | c | 1828 | Waverley | Thoroughbred | Great Britain | ||
| The Satrap | grey | c | 1924 | The Tetrarch | Thoroughbred | Great Britain | ||
| The Schemer | br. | f | 1934 | Challenger II | Granny | Thoroughbred | USA | |
| The Scottish Chief | bay | c | 1861 | Lord of the Istles | Miss Ann | Thoroughbred | Great Britain |