He played in Major League Baseball (MLB) for the Chicago Cubs, Oakland Athletics, and Baltimore Orioles.

[2] He made his major league debut with the A's on August 30, 2005, where he entered the game as a pinch runner in the tenth inning before moving to left field.

[8] On December 13, 2008, Bynum signed a minor league contract with the Washington Nationals and received an invitation to spring training.

[9] Bynum signed a minor league contract with the Chicago White Sox on December 13, 2009,[10] but was released early on in Spring Training.

[11] Upon his release from the White Sox, Bynum was signed by the Orix Buffaloes of the Japanese Baseball League in February 2010.