Moore grew up the son of sharecroppers. He quit school in the eighth grade and soon afterwards entered into military service. After the military he worked as a civil servant and for fun he would play poker. When he realized he was making more money playing poker, he quit his job and in 1968 moved to Las Vegas, Nevada.
Moore has played at the World Series of Poker since 1974 and won his bracelet in the $5,000 Seven Card Stud event in 1994. He earned a prize of $144,000, in addition to the bracelet, for this win.
As of 2009 he has one WSOP bracelet, and career tournament earnings of over $600,000. He was inducted into the Poker Hall of Fame in 1997.