Butler scored more than 12,000 points at the BSN, making him a member of the exclusive group of players to have scored 5,000 or more points in that league (as the league usually has a schedule of only 30 to 33 games per year, anyone who reaches 5,000 or more points there is generally considered as an all-time great by Puerto Ricans), and also joining the even more exclusive group of players with 10,000 or more points scored. He averaged 17 points per game over 23 years. He also collected more than 8,000 rebounds, for an average of almost 12 rebounds caught per game. Butler was the BSN's MVP in 1988, and the league's defensive player of the year in 1984, 1985, 1987, 1988, 1991, 1993 and 1994.