Nelson may not have the numbers of some of the other golfers on this list, but that is due only to the fact that he retired at age 34, after just 14 years playing pro. In that time, he earned 52 PGA Tour wins, which currently makes him sixth on the all-time list. He won five majors in his short career - the Masters in 1937 and 1942, the U.S. Open in 1939, and then the PGA Championship in 1940 and 1945, with only the British Open eluding him. Most amazing of all, however, was his winning 11 consecutive tournaments in 1945. He finished with 18 wins that year. Had he not become a rancher in just about the prime of his career, Nelson would surely have delivered even more eye-popping numbers.