Bellator MMA x Rizin 2 and Super Rizin 2 was a mixed martial arts event being co-promoted by Bellator MMA and the Rizin Fighting Federation that took place on July 30, 2023, at the Saitama Super Arena in Saitama, Japan.

Kyoji Horiguchi is a Japanese mixed martial artist currently competing in Rizin FF in the Flyweight division, where he is the current RIZIN Flyweight Champion and former RIZIN Bantamweight Championship. He is also the former Bellator Bantamweight World Championship.