UFC 24: First Defense

UFC 91: Couture vs. Lesnar was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on November 15, 2008, at the MGM Grand Garden Arena in Las Vegas, Nevada. The main event featured the return of UFC Heavyweight Champion Randy Couture versus WWE's Brock Lesnar in a title bout. The decision to grant Lesnar—who was 1–1 in UFC fights at the time—the title shot was controversial at the time. Some felt it was premature and marketing driven, while others argued the relative lack of depth in the heavyweight division at the time left no clear-cut contenders to the belt.

UFC 55: Fury was a mixed martial arts event held by the Ultimate Fighting Championship on October 7, 2005 at the Mohegan Sun Arena in Uncasville, Connecticut. UFC heavyweight champion Andrei Arlovoski defends his title against hard-hitting Mexican striker Paul Buentello. The undercard is highlighted by The Ultimate Fighter Season 1 winner Forrest Griffin as he takes on Australia's Elvis Sinosic.

UFC 54: Boiling Point was a mixed martial arts event held by the Ultimate Fighting Championship on August 20, 2005, at the MGM Grand Arena in Las Vegas, Nevada.. UFC Light Heavyweight Champion Chuck Liddell makes his first title defense against the man who handed him his first ever defeat – Jeremy Horn. The undercard features the return of Randy "The Natural" Couture, the UFC debut of The Ultimate Fighter winner Diego Sanchez, and a highly anticipated welterweight match-up between Georges St. Pierre and Frank Trigg.

UFC 53: Heavy Hitters was a mixed martial arts event held by the Ultimate Fighting Championship on June 4, 2005, at the Boardwalk Hall in Atlantic City, New Jersey. Andrei Arlovski puts his interim Heavyweight Championship on the line against Justin Eilers. The undercard features a rematch for the UFC Middleweight Championship as Champion Evan Tanner defends this title against Rich Franklin. Other featured fighters include top ranked Forrest Griffin, Paul Buentello, Nate Quarry, David Loiseau, Nick Diaz and more.

UFC 92: The Ultimate 2008 was a mixed martial arts event by the Ultimate Fighting Championship (UFC) held on December 27, 2008 at the MGM Grand Garden Arena in Las Vegas, Nevada. The main event featured number-one contender Rashad Evans fighting the UFC Light Heavyweight Champion Forrest Griffin.

UFC 94: St-Pierre vs. Penn 2 was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on January 31, 2009. The main event featured the rematch of the UFC Welterweight Champion Georges St-Pierre against the UFC Lightweight Champion BJ Penn for the UFC Welterweight Championship.

WEC 36: Faber vs. Brown took place on November 5, 2008 at the Seminole Hard Rock Hotel and Casino in Hollywood, Florida. The event aired live on the Versus Network. Paulo Filho fought again against Chael Sonnen in the main event of the evening. WEC Featherweight Champion Urijah Faber also put his belt on the line against Mike Brown.

UFC 93: Franklin vs. Henderson was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on January 17, 2009 at The O2, Dublin in Dublin, Ireland. The main event featured a Light Heavyweight bout between former UFC Middleweight Champion Rich Franklin and former Pride Middleweight Champion and Pride Welterweight Champion Dan Henderson. The winner of the fight would become the coach opposite Michael Bisping for the ninth season of The Ultimate Fighter: United States vs. United Kingdom.

World Extreme Cagefighting returned to The Palace Indian Gaming Center in Lemoore, California for the ninth installment of promoters Scott Adams' and Reed Harris' emerging event. With a few big name guys and a packed stable of home grown talent, the WEC has started to make a push towards the top of the pack when it comes to regional events.

UFC 81: Breaking Point was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC) at the Mandalay Bay Events Center in Las Vegas, Nevada. The event featured Tim Sylvia and Antonio Rodrigo "Minotauro" Nogueira for UFC's Interim World Heavyweight Championship.

UFC 80: Rapid Fire was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC), that took place on January 19, 2008 at the Metro Radio Arena in Newcastle, England. Sean Sherk was originally slated to fight but tested positive for steroids. With the lightweight championship vacated, the Penn-Stevenson bout was altered to be for the undisputed championship.

UFC 79: Nemesis was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC), that took place on December 29, 2007 at the Mandalay Bay Events Center in Las Vegas, Nevada. The main event featured the highly anticipated rubber match between former UFC Welterweight Champions Georges St. Pierre and Matt Hughes. The Co-main event featured a fight between Chuck Liddell and Wanderlei Silva.

UFC 78: Validation was a mixed martial arts event held by the Ultimate Fighting Championship (UFC), that took place on November 17, 2007 at the Prudential Center in Newark, New Jersey. Validation was the first UFC event held in New Jersey since June 4, 2005's UFC 53: Heavy Hitters in Atlantic City. The main event featured TUF 2 Heavyweight winner Rashad Evans against TUF 3 Light Heavyweight winner Michael Bisping in a light heavyweight contest.

UFC 76: Knockout was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). The event took place on September 22, 2007 at the Honda Center in Anaheim, California. Though the event was subtitled Knockout, the entire card ironically produced no knockouts. The main event featured a fight between former Light Heavyweight Champion Chuck Liddell and The Ultimate Fighter 2 alum Keith Jardine, with both fighters returning from knockout losses at UFC 71.

UFC 75: Champion vs. Champion was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). The event was held September 8, 2007 at The O2 in London, England. The main event was a title unification match between UFC Light Heavyweight Champion Quinton Jackson and PRIDE Fighting Championships' 83 kg and 93 kg champion, Dan Henderson.

UFC 74: Respect was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). The event took place on August 25, 2007 at the Mandalay Bay Events Center in Las Vegas, Nevada. The main event was a UFC heavyweight championship bout which featured UFC heavyweight champion Randy Couture defending his title against Gabriel Gonzaga.

UFC 73: Stacked was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). It took place on July 7, 2007 at the ARCO Arena in Sacramento, California and featured a total of nine bouts: four on the preliminary card and five on the main card. The main event was Anderson Silva defending the UFC Middleweight Championship against Nathan Marquardt.

UFC 72: Victory was a mixed martial arts event held by the Ultimate Fighting Championship. The event took place Saturday, June 16, 2007 at The Odyssey in Belfast, Northern Ireland. Martin Kampmann was scheduled to fight Rich Franklin, but was forced to withdraw due to injury. Yushin Okami replaced Kampmann in the main event.

UFC 71: Liddell vs. Jackson was a mixed martial arts event held by the Ultimate Fighting Championship. The event took place on Saturday, May 26, 2007 at the MGM Grand Garden Arena in Las Vegas, Nevada. The main event was the rematch between UFC Light Heavyweight Champion "The Iceman" Chuck Liddell and Quinton "Rampage" Jackson. Jackson was the only fighter to have an unavenged win against Liddell.

UFC 70 was the second UFC event held in the United Kingdom, and the first in Manchester. The first UFC event in the UK was UFC 38: Brawl at the Hall on July 13, 2002. UFC 70 was also only the seventh UFC event held outside the United States, and the first since UFC 38. 2006 PRIDE Open-Weight Grand Prix Champion, Mirko Cro Cop fought Heavyweight contender Gabriel Gonzaga in the main event to determine the top contender for the UFC Heavyweight Championship held by Randy Couture.