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ONE SAMURAI 4 in Tokyo adds three all-Japan matchups across MMA and submission grappling

ONE Championship has announced three additional all-Japanese matchups for ONE SAMURAI 4. They span MMA and submission grappling and join a card set for Tokyo on October 17.

  • Submissions

Three more bouts between Japanese competitors have been added to ONE SAMURAI 4, which takes place in Tokyo on October 17. The additions cover both MMA and submission grappling. The package does not name the fighters or say how the three bouts are split between the two disciplines.

Three all-Japan MMA and submission grappling bouts join ONE SAMURAI 4 card

ONE Championship has confirmed three matchups between Japanese competitors for ONE SAMURAI 4. The bouts are in MMA and submission grappling. They are part of a large card scheduled for October 17 in Tokyo. No names, weights or running order are given in the information available.

Submission grappling is competition in which athletes try to win by forcing a submission, usually without the jacket worn in traditional Brazilian Jiu Jitsu. MMA permits striking as well as grappling, so both formats on one card put ground skills in front of the same audience.

Pairing Japanese competitors against one another on a home card gives local rivalries a Tokyo stage. For anyone who trains, a card mixing MMA and submission grappling shows how the same grappling skills are tested under different rules. In both formats a submission ends the contest outright, which is why positional control and finishing mechanics matter whatever the ruleset.

ONE SAMURAI 4 is scheduled for October 17 in Tokyo.

A submission is a hold that forces an opponent to concede or risk injury, and it ends the match immediately when it succeeds.

Sources

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  1. Primary sourceONE Championship7 Oct 2026

    Stacked ONE SAMURAI 4 Lineup Bolstered By Trio Of Riveting All-Japan Matchups

    Supports: Three all-Japan MMA and submission grappling bouts join ONE SAMURAI 4 card