The PFL 1 mixed martial arts event for the 2021 season of the Professional Fighters League was held on April 23, 2021. This was the first regular season event of the tournament and included fights in the Featherweight and Lightweight divisions. The event was headlined by a lightweight clash between the former UFC and WEC Lightweight champion Anthony Pettis and the UFC veteran Clay Collard.

ACA 180: Gadzhiev vs. Gaforov was a mixed martial arts event that took place on Friday, October 4, 2024 the Sport Hall Colosseum in Grozny, Chechnya, Russia.

ACA 193: Kerimov vs. Selimkhanov was a mixed martial arts event that took place on Saturday, October 4, 2025 at the Sport Hall Colosseum in Grozny, Chechnya, Russia.