UFC 83: Serra vs St-Pierre 2 was a mixed martial arts event held by the Ultimate Fighting Championship. The event was held on April 19, 2008, at the Bell Centre in Montreal, Quebec, Canada. UFC 83 was the UFC's first event in Canada. It was headlined by UFC Welterweight Champion Matt Serra and UFC Interim Welterweight Champion Georges St. Pierre in a match to unify the championship.

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.

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.

UFC 167: St-Pierre vs. Hendricks is a mixed martial arts event held on November 16, 2013, at the MGM Grand Garden Arena in Las Vegas, Nevada, U.S. The event will commemorate the organization's 20th anniversary. The main event is a UFC Welterweight Championship bout between the current champion Georges St-Pierre and #1 contender Johny Hendricks. Co-featured on the card is a light-heavyweight bout between former UFC Light Heavyweight Champion Rashad Evans and Chael Sonnen.

UFC 199: Rockhold vs. Bisping 2 was a mixed martial arts event held on June 4, 2016 at The Forum in Inglewood, California. After numerous opponents were forced to withdraw from the main event against Middleweight Champion, Luke Rockhold, the Ultimate Fighter 3 winner Michael Bisping accepted the fight. This fight was a rematch as the two met previously in November 2014 at UFC Fight Night: Rockhold vs. Bisping, with Rockhold winning via submission in the second round.

UFC 199: Rockhold vs. Bisping 2 was a mixed martial arts event held on June 4, 2016 at The Forum in Inglewood, California. After numerous opponents were forced to withdraw from the main event against Middleweight Champion, Luke Rockhold, the Ultimate Fighter 3 winner Michael Bisping accepted the fight. This fight was a rematch as the two met previously in November 2014 at UFC Fight Night: Rockhold vs. Bisping, with Rockhold winning via submission in the second round.

UFC 257: Poirier vs. McGregor 2 was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on January 24, 2021 at the Etihad Arena on Yas Island, Abu Dhabi, United Arab Emirates. A lightweight rematch between former UFC Featherweight and Lightweight Champion Conor McGregor and former interim champion Dustin Poirier headlined this event. They met previously in a featherweight bout at UFC 178 on September 27, 2014, where McGregor won by first-round TKO.

UFC 214: Cormier vs. Jones 2 is a mixed martial arts event held by the Ultimate Fighting Championship on July 29, 2017 at Honda Center in Anaheim, California.

UFC 202: Diaz vs. McGregor 2 was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on August 20, 2016, at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas metropolitan area. The event was headlined by a welterweight rematch between The Ultimate Fighter 5 winner and former lightweight title challenger Nate Diaz and UFC Featherweight Champion Conor McGregor.

UFC 132: Cruz vs. Faber was a mixed martial arts event held by the Ultimate Fighting Championship on July 2, 2011 at the MGM Grand Garden Arena in Las Vegas, Nevada.