The PFL 9 mixed martial arts event for the 2018 season of the Professional Fighters League was held on October 13, 2018, at the Long Beach Arena in Long Beach, California.
[1] The event was the ninth of the 2018 season and marked the start of the playoffs for the Light Heavyweight and Lightweight divisions.
[1][2] [3][1] * Islam Mamedov was originally scheduled to face Rashid Magomedov but was unable to continue in the tournament.
He was replaced by his quarterfinal opponent, Thiago Tavares.
[4] [3][1]