PFL 1: 2023 Regular Season was a mixed martial arts event that took place on Saturday, April 1, 2023 at the Theater at Virgin Hotels in Las Vegas, Nevada.

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.

UFC Fight Night 203: Santos vs. Ankalaev was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on March 12, 2022 at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States. A light heavyweight bout between former UFC Light Heavyweight Championship challenger Thiago Santos and Magomed Ankalaev served as the event headliner.

World Series of Fighting, also known as WSOF, is an American mixed martial arts (MMA) promotion based in Las Vegas, Nevada. The inaugural WSOF event took place on November 3, 2012 and the main card was broadcast on the NBC Sports Network.

World Series of Fighting, also known as WSOF, is an American mixed martial arts (MMA) promotion based in Las Vegas, Nevada. The inaugural WSOF event took place on November 3, 2012 and the main card was broadcast on the NBC Sports Network.

PFL 4 was a mixed martial arts event produced by the Professional Fighters League that took place on June 8, 2023, at the Overtime Elite Arena in, Atlanta, Georgia, United States. In the main event, 2022 featherweight champion Brendan Loughnane faced Jesus Pinedo.

World Series of Fighting 13: Moraes vs. Bollinger was a mixed martial arts event held September 13, 2014 in Bethlehem, Pennsylvania, United States, The event aired on NBCSN.

The PFL 10 mixed martial arts event for the 2022 season of the Professional Fighters League will be held on November 25, 2022, at the Hulu Theater in New York City, New York, United States. This will be the finale of the playoffs for all divisions, with the winners getting $1 million cash prize. The event also will also mark the organization's first pay-per-view card, being available on ESPN+ PPV.

World Series of Fighting 4: Spong vs. DeAnda was a mixed martial arts event held August 10, 2013 in Ontario, California, United States.

UFC Fight Night 123: Swanson vs. Ortega was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on December 9, 2017, at Save Mart Center in Fresno, California. A featherweight bout between Cub Swanson and Brian Ortega served as the event headliner.