UFC 266: Volkanovski vs. Ortega was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 25, 2021 at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area, United States. A UFC Featherweight Championship bout between current champion Alexander Volkanovski and former title challenger Brian Ortega headlined the event.

Strikeforce: Los Angeles, also referred to as Strikeforce Live was a mixed martial arts held by Strikeforce. The event took place on June 16, 2010 at Nokia Theatre in Los Angeles, California.

EliteXC: Primetime main card aired live on CBS, marking the first time a MMA event aired in primetime on major American network television. The most hyped fights was Kimbo Slice vs James Thompson, Robbie Lawler vs Scott Smith and Gina Carano vs Kaitlin Young.

Strikeforce / M-1 Global: Fedor vs. Henderson was a mixed martial arts event held by Strikeforce. The event took place on July 30, 2011 at Sears Centre in Hoffman Estates, Illinois. The main card was headlined by a heavyweight superfight between former Pride Heavyweight Champion Fedor Emelianenko and former Pride Welterweight Champion, Pride Middleweight Champion and current Strikeforce Light Heavyweight champ Dan Henderson.It was co-headlined by a women's bantamweight title fight between champion Marloes Coenen and challenger Miesha Tate.

Strikeforce: Miami was a mixed martial arts event held by Strikeforce on January 30, 2010 in Sunrise, Florida, United States at the BankAtlantic Center. The event aired live on Showtime in the US and on Super Channel in Canada.

UFC 40: Vendetta was a mixed martial arts event held by the Ultimate Fighting Championship on November 22, 2002, at the MGM Grand Arena on the Las Vegas Strip in Paradise, Nevada. The event was broadcast live on pay per view in the United States, and later released on DVD. UFC 40 contained one of the biggest, most important and most anticipated fights in UFC history, a UFC Light Heavyweight Championship fight between rivals Tito Ortiz and Ken Shamrock. Shamrock, a popular legendary fighter and former champion from the UFC's early years, was returning to the UFC for the first time since 1996. The fight was coined "the biggest fight in UFC history" by the UFC during the event.

UFC 37.5: As Real As It Gets was a mixed martial arts event held by the Ultimate Fighting Championship at the Bellagio Hotel and Casino in Las Vegas, Nevada on June 22, 2002.

UFC 37: High Impact was a mixed martial arts event held by the Ultimate Fighting Championship at the CenturyTel Center in Bossier City, Louisiana on May 10, 2002. The event was seen live on pay per view in the United States, and was later released on home video.

UFC 42: Sudden Impact was a mixed martial arts event held by the Ultimate Fighting Championship at the American Airlines Arena in Miami, Florida. UFC 42 was the first UFC event to take place in Florida. Headlining the event was a Welterweight Title bout between Matt Hughes and Sean Sherk. UFC 42 also marked the first UFC appearance of future Middleweight Champion Rich Franklin.

UFC 47: It's On! was a mixed martial arts event held by the Ultimate Fighting Championship at the Mandalay Bay Events Center in Las Vegas, Nevada. The title "It's On!" refers to Chuck Liddell and Tito Ortiz' long running negotiations leading up to the fight.