Luis Gustavo wins RIZIN lightweight title with first-round KO

At RIZIN 53, Luis Gustavo captured the lightweight championship by knocking out Ilkhom Nazimov in the first round. The event featured 15 fights with multiple finishes. Notable results included Ryo Takagi knocking out Kaiven Li in round one, Shinobu Ota submitting Yuto Hokamura with an arm triangle in round two, and Ryan Cafaro finishing Koyomi Matsushima with a guillotine in round three. The co-main event between Ren Hiramoto and Koji Tanaka ended in a draw under special stand-up only rules with no weight limit.