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,[2][3] following the acquisition and restructuring of the former World Series of Fighting (WSOF) promotion in 2017 by MMAX Investment Partners.[4][5] 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.[6] They have since transitioned from the league format back into a year-round basis.