Irving Crane
He won his first world title in 1942. Over the next thirty years, Crane won almost two dozen major championships, including the World Crown in 1946, 1955, 1966, 1968, 1970 and 1972, the Ballantine International Championship in 1965, the International Roundrobin championship in 1968, and the World Series of Billiards in 1978 at age 65. At the 1966 World Crown tournament, he ran 150 and out in the finals. He never let his opponent back to the table after an early safety battle. No other player has ever done this. Crane also holds the record for the most runner-up finishes for the World Crown with 13.