Extra Bonus (US)
| Year of Birth | 1966 |
| Sex | mare |
| Colour | bay |
| Sire | Speedster (US) |
| Dam | Kashaplenty (US) |
| Damsire | Worthy Boy (US) |
| Breeder | Castleton Farm |
| Birthplace |
Pedigree
Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
|---|---|---|---|---|---|---|
| 1983 | Retirement Benefit (US) | bay | mare | Lindy's Pride (US) - Extra Bonus (US) | Castleton Farm |