I started my training in 2003 in Muay Thai then joined Rhino Fight Team in 2005 and started training in MMA and BJJ under Rob Guarino, Eddie Cruz and Dan Fischer. I made my Pro debut on Feb 11, 2006 winning by knock out!
In 2010 i decided to leave Rhino Fight Team and joined forces with hall of famer and UFC vet Kurt Pellegrino!
I then joined CFFC and became a 5 time World Champion knocking out 4 of the 5 opponents. soon after we got the call from the UFC.I have 7 fights in the UFC with one knock out and a total record 18-8-1. twelve out of all my fights are winning by knock outs and I'm currently a brown belt in BJJ.I opened my gym in September 2017, Sullivan Kickboxing Academy. I joined up with check mat BJJ Bruno Protasio to build my very own team and start the next chapter of my career !
George is married to Christine Sullivan and has a new born baby girl, Amelia Grace Sullivan