Luis Gustavo defeats Ilkhom Nazimov by first-round KO to win RIZIN lightweight title

Luis Gustavo captured the RIZIN lightweight championship by knocking out Ilkhom Nazimov in the first round at RIZIN 53. The event featured multiple finishes across its card. Notable results included Ryo Takagi knocking out Kaiven Lee 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 main event bout between Ren Hiramoto and Koji Tanaka ended in a draw under special stand-up rules with no weight limit. Several other fighters secured first-round finishes on the card, demonstrating RIZIN's action-packed event in Japan.