The PFL 8 mixed martial arts event for the 2021 season of the Professional Fighters League was held on August 19, 2021. This was the second event for of the playoffs with the Heavyweight and Women's Lightweight divisions competing. This event aired on ESPN, with the prelims on ESPN+. Kayla Harrison, the only two-time Olympic gold medalist in judo in the history of the United States, entered her second PFL playoffs unbeaten in 10 pro bouts. She faced Genah Fabian who held a 4-1 record and had won both of her PFL regular season bouts against Julija Pajic and Laura Sanchez to advance to the playoffs.
The PFL 10 mixed martial arts event for the 2019 season of the Professional Fighters League, the 2019 PFL Championship, was held on December 31, 2019, at the Hulu Theater at Madison Square Garden in New York City, New York.
The PFL 7 mixed martial arts event for the 2019 season of the Professional Fighters League was held on October 11, 2019, at the Mandalay Bay Events Center in Las Vegas, Nevada. Kayla Harrison was initially scheduled to face Genah Fabian at this event. However, Fabian missed weight and was replaced by Bobbi-Jo Dalziel.
The PFL 4 mixed martial arts event for the 2019 season of the Professional Fighters League was held on July 11, 2019, at the Ocean Resort Casino in Atlantic City, New Jersey. This was the fourth regular season event of 2019 and include fights in the welterweight and women's lightweight divisions.
The PFL 11 mixed martial arts event for the 2018 season of the Professional Fighters League was held on December 31, 2018, at the Hulu Theatre at Madison Square garden in New York City, New York, Illinois.
PFL #6 was a mixed martial arts event for the 2018 season of the Professional Fighters League that was held on August 16, 2018 at the Ocean Resort Casino, in Atlantic City, New Jersey, United States.
The PFL 2 mixed martial arts event for the 2018 season of the Professional Fighters League was held on June 21, 2018, at the Chicago Theatre in Chicago, Illinois. It was the second regular season event of 2018 and included only fights in the lightweight and light heavyweight divisions.
Kayla Jean Harrison is an American former judoka who competed in the 78 kg weight category, and is currently a mixed martial artist who competes in the lightweight division. She won the 2010 World Judo Championships, gold medals at the 2012 and 2016 Olympics, and gold at the 2011 and 2015 Pan American Games