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 8 mixed martial arts event for the 2022 season of the Professional Fighters League was held on August 13, 2022, at the Cardiff Motorpoint Arena in Cardiff, Wales. This was the start of the playoffs for the Heavyweight and Welterweight divisions.

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 2 mixed martial arts event for the 2021 season of the Professional Fighters League was held on April 29, 2021. This was the second regular season event of the tournament and included fights in the Welterweight and Light heavyweight divisions. The event was to be headlined by a welterweight clash between the former UFC title contender and Bellator welterweight champion Rory MacDonald and the former UFC veteran David Michaud.

The PFL 5 mixed martial arts event for the 2021 season of the Professional Fighters League was held on June 17, 2021. This was the second regular season event of the tournament and included fights in the Welterweight and Light heavyweight divisions. The event was headlined by a welterweight clash between the former UFC title contender and Bellator welterweight champion Rory MacDonald and the former UFC veteran Gleison Tibau.

PFL 4: 2023 Regular Season was a mixed martial arts event that took place on Friday, June 23, 2023 at the Overtime Elite Arena in Atlanta, Georgia.

The PFL 3 mixed martial arts event for the 2022 season of the Professional Fighters League will be held on May 6, 2022, at the Esports Stadium Arlington in Arlington, Texas. This will be the third regular season event of the tournament and included fights in the Women's Lightweight and Welterweight divisions.

PFL 9 was a mixed martial arts event produced by the Professional Fighters League that took place on August 23, 2023, at The Theater at Madison Square Garden in New York City, New York, United States. The event was headlined by a lightweight playoff bout between Clay Collard facing off against Shane Burgos in an attempt to reach the lightweight final.

Week 6 of the regular season happens tonight (Jul 1) in Atlanta, GA and features a main event between two-time PFL women’s lightweight champion Kayla Harrison and women’s MMA pioneer Kaitlin Young, who is filling in for the injured Julia Budd. The co-main event pits former UFC welterweight title challenger and ex-Bellator champion Rory MacDonald against Sadibou Sy.