Hamill was on The Ultimate Fighter 3 reality television show, training under former UFC Light Heavyweight ChampionTito Ortiz in the 205 lb (93 kg) weight class. He won a preliminary fight against Mike Nickels via decision, but was unable to continue into the semi-finals due to injuries.
Hamill then fought Rex Holman at UFC 68: The Uprising where he won by TKO in the first round.
Hamill fought fellow TUF 3 alumnus Michael Bisping at UFC 75 in London, England on September 8, 2007, where he lost via split decision. The decision was considered controversial as many believed Hamill won the fight. A rematch was scheduled for UFC 78, but due to knee surgery, Hamill withdrew. A rematch since became unlikely because Bisping subsequently dropped down to the Middleweight division after losing a split decision to Rashad Evans.[6][7]
Hamill next fought Tim Boetsch on April 3, 2008, whom he defeated in the second round by TKO,[8] bringing his record to 4 wins and 1 loss. During the fight, Hamill had a badly split bottom lip due to a knee strike.[8]
Hamill then went on to fight at UFC 88 against former UFC Middleweight ChampionRich Franklin as the co-main event. He lost the fight by TKO after a kick to the liver at 0:39 of the third round.[9]
At UFC 92, Hamill defeated Reese Andy in the second round by TKO due to strikes.
Hamill fought former NCAA wrestling champion Mark Muñoz at UFC 96, defeating him with a right leg roundhouse kick to the head, knocking Munoz unconscious and earning him the Knockout of the Night award.[10]
Coming off of knee surgery, Hamill became sick.[12] Hamill faced off against undefeated prospect Jon Jones on December 5, 2009, at The Ultimate Fighter: Heavyweights Finale. Jones would be disqualified for using illegal 12–6 elbows. The unified rules of mixed martial arts prohibit downward elbow strikes, and Jones was initially only penalized a point from the round.[13] However, because Hamill could not continue due to his dislocated shoulder, he was awarded the DQ win.[14] Consequently, the tape was reviewed and showed that Jones' elbows further damaged Hamill's already bloody and lacerated nose.[13][15] This marked the first time that Nevada has used its recently enacted instant replay rule, in which the referee's decision was supported by the commission which utilized a slow motion replay to review the elbows.[16] Hamill contested the decision, stating after the fight that he "definitely didn't win" and Jones "definitely didn't lose".[17]
Hamill next fought his former The Ultimate Fighter 3 coach, Tito Ortiz on October 23, 2010, at UFC 121 which he won via unanimous decision.[19]
Hamill was next scheduled to face undefeated Phil Davis at UFC 129.[20] It was then announced that Thiago Silva had failed his UFC 125 post fight drug test, and Hamill was named as his replacement in his bout against former UFC light heavyweight champion and current top contender Quinton Jackson.[21] Hamill lost the fight via a one sided unanimous decision.
At UFC 133 Hamill faced off against up and coming Swedish striker Alexander Gustafsson, replacing an injured Vladimir Matyushenko.[22] After an uneventful first round, Gustafsson dropped Hamill in the second with a straight punch followed by an uppercut, subsequently finishing Hamill with punches and elbows from the mount.
On August 8, 2011, Matt Hamill decided to step away from the UFC and MMA, as he lost his last two fights. "Today is a sad day for me. After six years and 13 fights in the UFC I'm ready to hang up my gloves and retire from this amazing sport," he said on his official website.[23]
Nearly a year later, however, Hamill decided to come out of retirement. Hamill was expected to face UFC newcomer Roger Hollett on September 22, 2012, at UFC 152.[24] However, Hollett was forced out of the bout due to a contract dispute with Bellator and replaced by Vladimir Matyushenko.[25] However, Matyushenko was forced out of the bout after suffering a torn Achilles tendon while training, and was replaced by Hollett, who had settled the issue in time.[26] He won his return fight via unanimous decision (29–28, 30–27, and 30–27).[27]
Hamill faced Thiago Silva on October 9, 2013, at UFC Fight Night 29.[28] Hamill lost the bout by unanimous decision and was subsequently released from the UFC.[29]
World Series of Fighting
In May 2014 Hamill signed a deal with World Series of Fighting.[30] He was expected to debut for the promotion later in 2014, however due to nagging injuries, Hamill would retire for the second time in his career.[31]
Hamill later decided to return to mixed martial arts and was scheduled to fight against Vinny Magalhães at WSOF 20 on April 10, 2015.[32] However Magalhães was pulled from the bout after a contract dispute with Titan Fighting Championships.[33] Hamill was expected to fight in a rematch against Thiago Silva at WSOF 19 on March 28, 2015,[34] but was forced to withdraw from the competition after a sinus infection.[35] Hamill eventually faced Magalhães at WSOF 24 held on October 17, 2015. He lost the fight via submission in the first round.
Independent promotions
After his stint in WSOF, Hamill began fighting for various independent promotions.
Hamill faced Rameau Thierry Sokoudjou on May 21, 2016, at Venator FC3: Palhares vs. Meek in Italy.[36] He lost the fight via knockout in the first round.
Hamill next faced Julian Marquez on October 14, 2016, at Combate Americas: Empire Rising. He lost the fight via TKO in the first round.
Following a four-fight losing streak, Hamill earned his first win in over four years when he faced fellow UFC veteran Luiz Cané at Fight 2 Night 2 on April 28, 2017, in Brazil. He won the fight via knockout in the first round.
Hamill then faced Chris Birchler at Maverick MMA 6, and won by split decision.
Personal life
Hamill is divorced and has a daughter from the marriage.[37] Hamill and his longtime girlfriend Brittany Houck were engaged to be married in May 2008.[38][39]
Hamill is the subject of a 2010 movie entitled The Hammer about his early life and wrestling career. Originally set to star Eben Kostbar, it was criticized by the deaf community for featuring a non-deaf actor; however, Hamill himself supported the casting of Kostbar due to his wrestling experience and the fact that Kostbar is fluent in American Sign Language.[40][41] However, Kostbar withdrew from starring,[42] feeling it would be more appropriate for a deaf actor to take the role.[43]
Deaf actor Russell Harvard was chosen as the final choice to voice Hamill.[44] The movie was produced by Joseph McKelheer and Eben Kostbar and was directed by Oren Kaplan.[45]
On January 4, 2025 it was reported that Hamill got a powerful hearing aides and is able to hear for the first time in 41 years.[46]
^"Questionable verdict". Yahoo! Sports. September 9, 2007. Retrieved September 11, 2007. "White said the rematch is 'a no-brainer and I'm going to be on it right away.'"