1960- . US jockey. He rode Affirmed to the US
Triple Crown in 1978 at the age of 18 and won
487 races in 1977. He has ridden in England
since 1979 and has twice won the Derby, on
Slip Anchor in 1985 and on Reference Point in
1987. He was UK champion jockey in 1984,
1985, and 1987.