Professional Fighters League ("PFL"; formerly the World Series of Fighting, or "WSOF") is an American mixed martial arts promotion company, and the following is a history of its superfight champions in each weight class.
Caio Alencar at PFL Fight Night on Nov 2, 2017 1. def.
Brian Foster at PFL Daytona on Jun 30, 2017 1. def.
Steven Rodriguez at PFL Everett on Jul 29, 2017 1. def.
The following includes all WSOF champions who were able to consecutively defend their title two times or more.
Fighters with the same number of title defenses are listed chronologically.
Fighters who have won championships in multiple weight classes.