Miller Barber, whose 1,297 combined starts on the PGA Tour and Senior Tour are an all-time record, died Tuesday at age 82.
His son, Richard Barber, told the New York Times that Barber died in Scottsdale, Ariz., of lymphoma.
Barber earned 11 wins on the PGA Tour, then won 24 times on the senior circuit. He was noted for his unorthodox swing, in which his right elbow moved away from his body.
"We are saddened by the passing of Miller Barber," PGA Tour commissioner Tim Finchem wrote in a statement. "He was a wonderful player who made his mark on the PGA Tour with 11 victories and then really excelled on Champions Tour, becoming one of its best players in the tour's formative years. Miller and the Champions Tour's other early stars helped establish the tour and make it the tremendous success it has become. Golf has lost a great man and competitor."
Known by the nickname "Mr. X," Barber won five majors on the Senior Tour. He captured the 1981 PGA Seniors' Championship, the 1983 Senior Players' Championship, and the U.S. Senior Open in 1982, 1984 and 1985.
His best result in a major on the PGA Tour was tie for fourth in the 1971 PGA Championship. He had six other top-10 finishes, two of them in the PGA Championship, and one each in the U.S. Open, British Open and the Masters. Barber finished in the top team in each of those events in 1969.
Pro golfer Ricky Barnes wrote on Twitter, "Just got bad news in the golf world. Lost a great player, but a better man. U will be missed Miller Barber"