The PFL 4 mixed martial arts event for the 2021 season of the Professional Fighters League was held on June 10, 2021. This was the fourth regular season event of the tournament and included fights in the Featherweight and Lightweight divisions. Boxing champion and Olympic gold medalist Claressa Shields made her MMA debut in the main event against Brittney Elkin.
CFFC 59: Morrison vs. Gordon was an MMA event held on July 9, 2016 in Philadelphia, Pennsylvania.
The PFL 9 mixed martial arts event for the 2021 season of the Professional Fighters League was held on August 27, 2021. This was the third event of the playoffs with the Featherweight and Light Heavyweight divisions divisions competing. This event aired on ESPN2, with the prelims airing on ESPN+.
PFL 9 was a mixed martial arts event for the 2024 season of the Professional Fighters League was held on August 23, 2024, at The Anthem in Washington, D.C., United States.
