Smyth spent five years (1999–2003) with the Chicago organization before joining the
Atlanta Braves (2004) and
Oakland Athletics (2004–2005)
Minor League systems. After that, he played for the independent
San Diego Surf Dawgs of the
Golden Baseball League in part of two seasons spanning 2006–2006. He played winter ball with the
Leones del Caracas club of the
Venezuelan Professional Baseball League in 2006. Smyth then pitched for several Minor League teams the next two years, appearing with the independent
Edmonton Cracker-Cats and
Long Beach Armada in 2008, during what turned out to be his last career season. Overall, he posted a 46-39 record with a 4.51
ERA in 145 minor league games,
striking out 562 batters while
walking 332 in 751
innings of work. ==Personal==