| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| The Bat | bay | f | 1885 | Hermit | Cicely Hacket | Thoroughbred | Great Britain | |
| The Beauty | bay | f | 1870 | Macaroni | Claret Cup | Thoroughbred | Ireland | |
| The Beggar | br. | f | 1916 | Avonbeg | Thoroughbred | Great Britain | ||
| The Best Lady | bay | f | 2021 | 643090000561852 | 1625-7 Red Dubawi | 5689-7 Simply the Best | Thoroughbred | Malkinsk Stud |
| The Best of Best | bay | f | 2022 | 643110800239060 | 0922-5 Palander | 6489-8 Uni Best | Thoroughbred | Volgogradsk Stud |
| The Big Boss | chestnut | c | 1965 | Bold Ruler | Anadem II | Thoroughbred | USA | |
| The Bink | bay | f | 1991 | Seeking the Gold | Toll Fee | Thoroughbred | USA | |
| The Blade | chestnut | f | 1993 | Sure Blade | Thea | Thoroughbred | Germany | |
| The Blonde | chestnut | f | 1958 | Wild Risk | Kisaki | Thoroughbred | USA | |
| 1694-7 The Bogberry | chestnut | c | 2005 | 985101045111998 | Hawk Wing | Lahinch | Thoroughbred | March Thoroughbreds |