UFC 231: Holloway vs. Ortega was a mixed martial arts event produced by the Ultimate Fighting Championship held on December 8, 2018 at Scotiabank Arena in Toronto, Ontario, Canada. A UFC Featherweight Championship bout between Max Holloway and Brian Ortega served as the event headliner.

UFC 231: Holloway vs. Ortega

UFC 243: Whittaker vs. Adesanya was a mixed martial arts pay-per-view event produced by the Ultimate Fighting Championship that took place on October 6, 2019, at Marvel Stadium in Melbourne, Victoria, Australia. A UFC Middleweight Championship unification bout between the champion Robert Whittaker (also The Ultimate Fighter: The Smashes welterweight winner) and undefeated interim champion Israel Adesanya served as the event's headliner.

UFC 243: Whittaker vs. Adesanya

UFC on ESPN 25: The Korean Zombie vs. Ige was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on June 19, 2021 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A featherweight bout between former UFC Featherweight Championship challenger Chan Sung Jung and Dan Ige served as the event headliner.

UFC on ESPN 25: Korean Zombie vs Ige

UFC 258: Usman vs. Burns was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on February 13, 2021, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A UFC Welterweight Championship bout between the current champion Kamaru Usman (also The Ultimate Fighter: American Top Team vs. Blackzilians welterweight winner) and Gilbert Burns served as the event headliner.