On Saturday, May 22, 2010, John Strmac was the lone GriffonRawl member on the Revelation Fight Organization's "Big Guns 5" in Mansfield, Ohio.
Pitted against Greg Petty for the RFO amateur bantamweight title, John overcame a slow start and big bombs from Petty and rallied in rounds two and three to win a unanimous decision victory. Greg was intense, athletic and came strong throwing heavy shots throughout their three round bout. John was able to weather the onslaught and followed excellent, intelligent instruction from Jason Dent to improve to 8-2.