Paul J. Bailey (April 5, 1922 – October 18, 2001) was an American jockey in Thoroughbred racing who, on June 26, 1959, set a New York Racing Association record with five wins from five mounts on a single racecard at Belmont Park in Elmont, New York.
Such was his success that after winning 18 of 36 starts with four seconds and five third-place finishes, a Winnipeg Tribune newspaper story referring to his "phenomenal" performance said that "at Polo Park he acts as though the fall meets were staged for his special benefit.
"[3] At that same track, Paul Bailey won back-to-back editions of the Canadian Derby, taking the 1947 race aboard Sir Berrill and in what Assiniboia Downs racing historian Bob Gates called "one of the greatest horse races ever run in Manitoba", Bailey won his second Canadian Derby in 1948 aboard the filly Victory Gift for owner Scotty Kennedy and trainer Bert Blake.
[4][5] Bailey's success in Western Canada opened the door to the big tracks on the East Coast of the United States.
Of his three mounts in the Kentucky Derby, his best result came in the 1951 edition when he rode Royal Mustang to a strong second place, finishing a head back of winner, Count Turf.