September 24, 2023 (Sun.) - September 24, 2023 (Sun.)

Finally, former RIZIN Featherweight Champion Kleber Koike and Masanori Kanehara aka Urabancho will face off! The same featherweight bout between Juntaro Ushiku vs. Kyohei Hagiwara is also a must-see!

The heavyweight division will feature a clash between Tsuyoshi Sudario and former UFC fighter Todd Duffee, as well as fighters from all weight classes, from flyweight to heavyweight, at Saitama Super Arena, the "Mecca of Martial Arts".

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