Mikuru Asakura Upsets Kleber Koike Erbst in Super RIZIN.4 Main Event

Mikuru Asakura Upsets Kleber Koike Erbst in Super RIZIN.4 Main Event

Liam Lindsay|
July 27, 2025|
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In a closely contested main event, Mikuru Asakura earned a split-decision win over Kleber Koike Erbst, avenging his previous loss and making the score 1-1 between them.

Official Result: Mikuru Asakura def. Kleber Koike Erbst via Split Decision

Asakura showcased massively improved grappling defense throughout the fight, preventing Koike from controlling him for extended periods. While Koike looked to clinch and wrestle against the ropes, Asakura consistently escaped, reversed positions, and returned to his feet.

Unlike their first bout, Koike couldn’t impose his top game effectively. The fight remained competitive, but the more significant damage was landed by Asakura, swaying two of the three judges in his favor.

RIZIN's scoring criteria favors aggression, so in my head, I thought I was clearly winning." - Kleber Koike Erbst.

Koike appeared visibly disappointed by the result but remained respectful in the ring. Speaking to media backstage, he made it clear he believed he had done enough to win.

I don't accept this defeat. Mikuru can't accept this as a true victory. I want this fight again, we need to do the trilogy.
- Kleber Koike Erbst

Asakura, on the other hand, stood by the judges' decision, saying he felt he earned the victory.

We paid a lot of attention to Koike's habits, I felt confident that if I stuck to the game plan, he wouldn't catch me with anything, and it worked.
- Mikuru Asakura