The PFL 1 mixed martial arts event for the 2018 season of the Professional Fighters League was held on June 7, 2018, at the Hulu Theatre at Madison Square Garden in New York City, New York, United States.

The PFL 4 mixed martial arts event for the 2018 season of the Professional Fighters League was held on July 19, 2018, at the Nassau Coliseum in Long Islandy, New York, United States.