Biz Mackey was an American baseball player who played in the Negro Leagues from the late 1920s until the mid-1940s. He is considered to be one of the greatest all-around players in the history of the Negro Leagues.

Mackey had an impressive career that saw him play for multiple teams, including the Bacharach Giants, Hilldale, and the Newark Eagles. He was a well-rounded player, excelling as a hitter, fielder, and baserunner. He was known for his powerful bat and was considered to be one of the best defensive catchers of his era. He was also known for his "catcher's intuition" when it came to anticipating the moves of baserunners.

Mackey's career was recognized with many honors, including his induction into the Baseball Hall of Fame in 2006. He was a four-time All-Star, a two-time MVP, and a two-time batting champion. In 1939, he was selected as the most valuable player in the Negro Leagues.

Biz Mackey's career was cut short due to his age and the fact that the major leagues did not integrate until 1947. He retired from the game in 1947, but his legacy and impact on the game of baseball remains. He is remembered as one of the great players of his era and for his accomplishments both on and off the field.