Born in Houston, Texas, Demaret reached his peak in the late 1940s with wins in the Masters in 1947, runner-up to Ben Hogan in the 1948 U.S. Open, and leading money winner and Vardon Trophy winner in 1947. He reached the semifinals of the PGA Championship four times, but never made the finals. He was one stroke short of making the playoff for the 1957 U.S. Open, at age 47. He played on three Ryder Cup teams: 1947, 1949, and 1951. His career declined in the 1950s, although he managed several key wins including the 1952 Bing Crosby Pro-Am. His last Tour win came in 1957 at age 47, although he also teamed at age 51 with Sam Snead to win the Canada Cup for the U.S. in Puerto Rico.