John Halverson, a seasoned mixed martial artist, competed with a record of 16 wins, 8 losses, and 1 no contest (NC) in his career. He specialized in the Lightweight division, weighing in at 155 lbs. Standing at 5' 9', Halverson adopted a southpaw stance during his matches. In terms of performance, Halverson demonstrated an average of 2.94 significant strikes per minute and a striking accuracy of 43%. However, he absorbed a considerable number of strikes with an average of 5.29 strikes per minute. His strike defense was at 47%, indicating that he successfully defended nearly half of the strikes directed towards him. Halverson did not have any recorded takedowns or submission attempts during his UFC career. Halverson's career highlights include a series of fights against notable opponents. In 2007, he faced Roger Huerta and suffered a loss via KO/TKO punches. The following year, Halverson competed against Jorge Gurgel and lost the match by unanimous decision (U-DEC). His last recorded fight was in 2008. Throughout his career, Halverson held an ELO rating of 969, reflecting his skill level among other fighters at that time.