Daley, who turned pro at the age of 32, played full seasons on the PGA Tour in 1996 and 1998, teeing it up in a total of 59 events. His best finish was a tie for sixth in the 1996 B.C. Open.
In the 2000 PGA Tour Q-School tournament, he rolled in a five-foot putt during the fourth round, only to see it pop out. He missed his PGA Tour card by a single stroke.
Daley first played on the Champions Tour in February 2011, finishing in a tie for 17th in the Allianz Championship in Boca Raton, Florida. In August 2012, Daley claimed the Senior Players Championship in Pittsburgh for his maiden senior Major title. He finished on 14 under par, two strokes ahead of countryman Tom Lehman.