Quinn Mulhern has four losses against four opponents on his MMA record. For a list of Mulhern's best fights, refer to "Best fights of Quinn Mulhern".
On January 4, 2014 Quinn Mulhern faced off against Katsunori Kikuno in a lightweight bout at age 29. He was coming in with a record of 18-4 (14), and Kikuno was 32 years old and with a record of 21-5-2 (14). Mulhern lost the fight via 3-round unanimous decision.
On March 16, 2013 Quinn Mulhern faced off against Rick Story in a welterweight bout at age 28. He was coming in with a record of 18-3 (14), and Story was 28 years old and with a record of 14-6 (6). Mulhern lost the fight via 1st-round TKO.
On June 24, 2011 Quinn Mulhern met Jason High in a welterweight (KOTC Championship) title defense fight. Mulhern was 26 years old and with a record of 15-2 (13), and High was 29 years old and with a record of 13-3 (8). Mulhern lost the fight via 3-round unanimous decision and lost the title.
On October 1, 2009 Quinn Mulhern fought Mike Guymon in a welterweight title fight for Guymon's KOTC Championship title. Mulhern was 25 years old and with a record of 8-1 (7), and Guymon was 35 years old and with a record of 10-2-1 (10). Mulhern lost the fight via 4th-round TKO.
