Robert Tyre Jones Jr. was an American amateur golfer who was one of the most influential figures in the history of the sport; he was also a lawyer by profession. Jones founded and helped design the Augusta National Golf Club, and co-founded the Masters Tournament. The innovations that he introduced at the Masters have been copied by virtually every professional golf tournament in the world.
Jones was the most successful amateur golfer ever to compete at a national and international level. During his peak from 1923 to 1930, he dominated top-level amateur competition, and competed very successfully against the world's best professional golfers. Jones often beat stars such as Walter Hagen and Gene Sarazen, the era's top pros. Jones earned his living mainly as a lawyer, and competed in golf only as an amateur, primarily on a part-time basis, and chose to retire from competition at age 28, though he earned significant money from golf after that, as an instructor and equipment designer.
Explaining his decision to retire, Jones said, "It [championship golf] is something like a cage. First you are expected to get into it and then you are expected to stay there.