Career
He bats and throws right-handed. He played in Major League Baseball (MLB) for the San Diego Padres in 2008. Oakland Athletics
He was drafted by the Oakland Athletics in the 37th round of the 2003 Major League Baseball Draft, but did not sign.
San Diego Padres
Then the San Diego Padres drafted him out of the College of Southern Nevada in the 2004 Major League Baseball Draft and he did sign.
Kazmar started 2008 with the Double-A San Antonio Missions and was batting.264 in 111 games when he was called up to the majors on August 12, 2008. He recorded his first Major League hit on August 13, 2008, on the first pitch of his first ever plate appearance from the Milwaukee Brewers" pitcher Central Committee Sabathia.
New York Mets
On January 10, 2012 Sean signed with the Mets to a minor league deal. Atlanta Braves
Since 2013, Kazmar has played for the Gwinnett Braves.
He resigned with them for the 2016 season.