Super RIZIN.4 Trailer | Midsummer Fight Festival at Saitama Super Arena

RIZIN’s summer tradition returns on July 27 as RIZIN Fighting Federation drops Super RIZIN.4 at the iconic Saitama Super Arena. Billed as the “Midsummer Fight Festival,” this card mixes chaos, skill, and spectacle — and the official trailer teases just how wild it might get.

At the top: Naoki Inoue faces the gritty and dangerous Ryuya Fukuda in a bantamweight matchup that could shift the division’s future. Inoue vs Fukuda is a fight between technique and pressure — and it might not go the distance.

Then there’s Seika Izawa, undefeated and still untouched, taking on South Korea’s rising force Yu Jin Shin. Izawa vs Jin Shin could end up being the most technical scrap of the night — and a real showcase for how far women’s MMA has come in Asia.

And don’t sleep on the featherweights. Kleber Koike Erbst brings slick grappling into the cage against fan-favorite Mikuru Asakura in a fight that promises pace and risk from the opening bell.