PRIDE Fighting Championship Hunt's mixed martial arts career saw him fight in events in Japan's
PRIDE Fighting Championships. His first MMA fight was a submission loss to
Hidehiko Yoshida, an Olympic gold medalist in
judo. In his second fight, he defeated American
wrestler Dan Bobish by TKO. Hunt stepped in as a late replacement for Sakuraba, and won a split decision against an outweighed PRIDE middleweight (205 lb) champion
Wanderlei Silva. Silva, renowned for his brutal punching and
Muay Thai clinch game, was neutralised by the hard-hitting Samoan and knocked down several times in the fight. At the
PRIDE Shockwave 2005 event, Hunt surprisingly defeated
Mirko Cro Cop via a split decision, after his earlier loss to him in K-1. At
PRIDE 31: Unbreakable, Hunt defeated Japanese boxer
Yosuke Nishijima in the third round with a powerful one-two punch. Hunt's next fight was in the opening round of PRIDE's 2006 Open-Weight Grand Prix (
PRIDE Total Elimination Absolute) on 5 May 2006. His opponent was Japan's Tsuyoshi Kohsaka, who he defeated by TKO in the second round. He then faced American catch-wrestler
Josh Barnett at
PRIDE Critical Countdown Absolute in the second round of the tournament. Hunt was immediately taken down by Barnett and ultimately lost to a
kimura submission roughly two-and-a-half minutes into the first round. Following that fight, Hunt next lost to
PRIDE Heavyweight Champion Fedor Emelianenko at
PRIDE Shockwave 2006. Hunt controlled Emelianenko most of the fight and even effectively countered an armbar early in the bout. Hunt's greatest chance of winning came when he was able to put Emelianenko in an
Americana. Unfortunately for Hunt, Emelianenko was able to fight through it and submit Hunt with a kimura.
Post-PRIDE On 21 July 2008, more than a year after his previous MMA fight, Hunt returned to MMA to face
Alistair Overeem at the
Dream 5: Lightweight Grand Prix 2008 Final Round, and was submitted by an armlock in just over a minute into the first round. Hunt was set to fight
Jerome Le Banner at
Dynamite!! 2008 but ended up fighting late replacement
Melvin Manhoef after Le Banner pulled out. Despite the fact that he had a substantial weight advantage over Manhoef, he was knocked out in 18 seconds in the first round. This marked the first time he had been stopped by knockout due to punches to the head. On 26 May 2009, Hunt fought former
DREAM Middleweight Champion Gegard Mousasi in the opening round of the
Super Hulk Grand Prix at
Dream 9. He lost the fight via submission in the first round.
Ultimate Fighting Championship When the
UFC acquired
Pride FC in 2007, they also acquired Hunt's contract. Hunt was owed a specific number of fights on a no-cut contract, but due to Hunt being on a losing streak at the time, the UFC reportedly offered him a total sum of approximately $450,000 for a contract buyout, but Hunt refused, electing to fight instead. Hunt made his UFC debut on 25 September 2010, at
UFC 119 against fellow UFC newcomer and undefeated prospect
Sean McCorkle. Hunt trained with
American Top Team for the fight. Photos that had emerged on the internet had shown that Hunt had lost a considerable amount of weight in comparison to that of his Pride days. Hunt lost the fight via submission in the first round. Hunt's next fight in the UFC was against
Chris Tuchscherer at
UFC 127 on 27 February 2011, in Sydney, Australia. Hunt defeated Tuchscherer in the second round via KO, earning
Knockout of the Night honors. Hunt faced
Ben Rothwell at
UFC 135 on 24 September 2011. He won the fight via unanimous decision. Hunt next faced
Cheick Kongo on 26 February 2012, at
UFC 144. He won the fight via TKO in the first round. Hunt was expected face
Stefan Struve on 26 May 2012, at
UFC 146. However, he pulled out of the bout due to injury ten days prior to the event. The bout with Struve was rescheduled for 3 March 2013, at
UFC on Fuel TV 8. Hunt defeated Struve via third-round TKO in a performance that earned him
Knockout of the Night honors. Hunt faced
Junior dos Santos on 25 May 2013, at
UFC 160, replacing an injured
Alistair Overeem. Hunt lost the fight via knockout in the third round in a bout that earned both participants
Fight of the Night honors. Afterwards, some major MMA media outlets were considering this to be the best fight in the history of the
UFC heavyweight division. Hunt faced
Antônio Silva in the main event on 7 December 2013, at
UFC Fight Night 33. The fight went to a decision, with one judge scoring it 48–47 for Hunt, while the other two judges had the scores even 47–47, resulting in a majority draw. Post-fight, Dana White stated that the bout won
Fight of the Night and, despite the draw result, both men would receive their win bonuses. The bout with Silva has been described as one of the best in the promotion's heavyweight history. In a post-fight test, Silva tested positive for elevated testosterone, which was believed to be attributed to undergoing UFC-approved
testosterone replacement therapy. In turn, the bout is still a "draw" on Hunt's official record, while in Silva's case it was overturned to a no-contest.
Contract dispute On 5 August 2014, Hunt posted cryptic tweets about becoming unemployed, which
Dana White immediately denied. At first, Hunt blamed his tweets on hunger, but later in mid-August he revealed that he had decided to walk away from the sport due to business reasons.
Continuation in UFC Hunt faced
Roy Nelson on 20 September 2014, at
UFC Fight Night 52. He won the fight via knockout in the second round. The win earned Hunt his first
Performance of the Night bonus award, and the
World MMA Awards' 2014
Knockout of the Year award. On 21 October 2014, it was announced that Hunt would replace injured
UFC Heavyweight Champion Cain Velasquez in the main event of
UFC 180. He faced off against
Fabrício Werdum for the
interim UFC Heavyweight Championship. Despite having early success and dropping Werdum twice, Hunt lost the fight via TKO in the second round. Hunt faced
Stipe Miocic on 10 May 2015, at
UFC Fight Night 65. He lost the fight via TKO in the fifth round. Miocic set a UFC record for the most strikes landed in a fight, outlanding Hunt 361–48 over the duration of the bout. Hunt faced
Antônio Silva in a rematch on 15 November 2015, at
UFC 193. Hunt won the fight via TKO, after dropping Silva with a straight right up against the fence at 3:41 of the first round. Hunt faced
Frank Mir on 20 March 2016, at
UFC Fight Night 85. He won the fight via KO in the first round after sending Mir to the canvas with a right hand. He was awarded with
Performance of the Night for his efforts. It was later announced that Mir failed an in-competition drug test. Despite talks about Hunt's current contract being his last, on 14 April 2016, it was announced that Hunt had signed a new six-fight, multi-million-dollar contract with the UFC. Hunt faced a returning
Brock Lesnar on 9 July 2016, at
UFC 200. He lost the fight via unanimous decision. However, on 15 July, it was revealed that Lesnar had tested positive for a banned substance in a pre-fight drug test. The test result was conducted on 28, 11 June days prior to the fight, and was flagged by
USADA as a potential anti-doping violation. On 19 July, the UFC announced that Lesnar tested positive for the same banned substance in a second, in-competition sample. On 23 August, the Nevada Athletic Commission confirmed that Lesnar twice tested positive for the oestrogen blocker
clomiphene, and that he has been temporarily suspended. Due to Lesnar's positive tests, the result of the fight was changed to a no contest. Hunt faced
Alistair Overeem in a rematch on 4 March 2017, at
UFC 209. He lost the fight via knockout in the third round. Hunt faced
Derrick Lewis on 11 June 2017, in the main event at
UFC Fight Night 110. It was the first combat sports event in Auckland since
UFC Fight Night 43 in
Vector Arena. He won the fight via TKO in round four. The win also earned Hunt his third
Fight of the Night bonus award. Hunt was expected to face
Marcin Tybura on 19 November 2017, at
UFC Fight Night: Hunt vs. Tybura. However, on 10 October, Hunt was pulled from the card and was replaced by
Fabrício Werdum after UFC officials reviewed Hunt's article, entitled, "If I Die Fighting, That's Fine" on his health status from the consequences he suffered from his fighting career. Hunt was upset with the news, responding on his Instagram that the quote was taken out of context and that he had been cleared to fight by doctors two days before he was pulled from the bout. On 5 December 2017, it was announced that Hunt had been cleared to fight after undergoing medical tests in Las Vegas that were arranged by the UFC. Hunt faced
Curtis Blaydes on 11 February 2018, at
UFC 221. Prior to the event, Hunt announced that he would not seek to renew his contract after it expired. Hunt knocked down Blaydes in the first round, but would be outwrestled for the remainder of the fight and lost via unanimous decision. Hunt faced
Aleksei Oleinik on 15 September 2018, in the main event of
UFC Fight Night 136. He lost the fight via rear-naked choke submission in the first round. Hunt faced
Justin Willis on 2 December 2018, at
UFC Fight Night 142. He lost the fight via unanimous decision. The fight was his last fight of his UFC contract, with Hunt stating that he would continue his fighting career with other organisations. ==Boxing==