Professional Fighters League

The Professional Fighters League (PFL) is an American mixed martial arts league founded by venture capitalist Donn Davis in 2017 and launched in 2018, following the acquisition and restructuring of the former World Series of Fighting (WSOF) promotion in 2017 by MMAX Investment Partners. It is the first major MMA organization in which individual athletes compete in a regular season, post-season and championship, rather than on a year-round basis.

The PFL currently puts on fights across eight weight-divisions: women's flyweight, bantamweight, featherweight, women's Featherweight, lightweight, welterweight, light heavyweight and heavyweight. The PFL's matches are held inside a 10-sided mixed martial arts cage known as the SmartCage, and adhere to the unified rules of mixed martial arts. The PFL initially prohibited all elbow strikes, but in November 2024, it was announced that they would finally be allowed, starting with the 2024 Championship season.

The PFL's inaugural event took place on June 7, 2018, at the Hulu Theater at Madison Square Garden in New York City. At the end, each champion of the six weight classes won a championship prize of $1 million each.