Although his major league career was limited to just six games, O'Connor pitched twelve professional seasons.

He ended his playing career with 70 wins and 932 strikeouts over 1,226 innings pitched, mostly accumulated in the minor leagues.

Was a member of the 1999 Arizona fall league champion Mesa Solar Sox.

He played for the following organizations: Pittsburgh Pirates (1995–2002), Tampa Bay Devil Rays (2003), Atlanta Braves (2005–2006) Signed with Cincinnati Reds for 2007 season.

This biographical article relating to an American baseball pitcher born in the 1970s is a stub.