He played in Major League Baseball (MLB) for the Oakland Athletics, Cleveland Indians and Houston Astros.

[1] He won the Pac-10 Player-of-the-week award in consecutive weeks in 2004, a feat that was not repeated by a Sun Devil until Ike Davis in 2007.

He was in the Opening Day lineup for Oakland due to an injury to first baseman Dan Johnson, which prompted manager Bob Geren to shift Nick Swisher to first base and tab Buck as the starting right fielder.

[6] Buck went 1-3 in the game, with his first major league hit being a double off Mariners starting pitcher Félix Hernández.

He made their 2011 opening day roster, but was soon sent down to the Triple-A Columbus Clippers when Grady Sizemore was activated from the disabled list.

[10] Buck was named the Boise State University Baseball director of player development and bench coach on August 20, 2018.