[7][8][9][10] Byrne and UCSB won the 2006 NCAA Division I Men's Soccer Championship and he was selected to the all-College Cup team.
[11] While enrolled at UCSB, Byrne also played with San Fernando Valley Quakes of the USL Premier Development League, scoring two goals in four appearances.
[12] Byrne was drafted in the third round (38th overall) of the 2007 MLS SuperDraft by the New England Revolution and manager Steve Nicol, a former Liverpool player.
[16] Byrne left New England Revolution at the end of the year and subsequently signed for Ventura County Fusion.
[17][18] Byrne has appeared for a number of amateur teams including Hollywood United F.C., Los Angeles Celtic, and Doxa Italia.