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Riku Masuda vs Seiya Tsutsumi rematch leads November 29th title tripleheader in Tokyo

Japan’s traditional year-end title bonanza appears to be underway, as U-Next announced a trio of championship bouts on November 29th at Tokyo’s venerable Ryogoku Kokugikan. Leading the way is some variety of WBA bantamweight title rematch between “world” champion Riku…

By Patrick Stumberg · Bad Left Hook

Published: Wednesday, 14 October 2026 at 4:42 PM

Key Things to Know

Riku Masuda will rematch Seiya Tsutsumi for a WBA bantamweight belt on November 29 in Tokyo.
The title tripleheader at Ryogoku Kokugikan was officially announced by broadcast platform U-Next.
Kenshiro Teraji will defend his super flyweight championship against Mexican challenger Jassiel Ramon Amador Gamez.

The Story in 60 Seconds

Riku Masuda will face Seiya Tsutsumi in a WBA bantamweight title rematch on November 29 at Tokyo's Ryogoku Kokugikan. The championship clash headlines a tripleheader event announced by U-Next, marking a rematch between the two fighters after Tsutsumi previously earned a unanimous decision victory over Masuda in 2023.

The undercard features two super flyweight world title bouts. Multi-weight champion Kenshiro Teraji makes a defense against Mexican challenger Jassiel Ramon Amador Gamez, while WBA titleholder David Jimenez defends his belt against former flyweight champion Seigo Yuri Akui via a special sanctioning permit.

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Riku Masuda vs Seiya Tsutsumi rematch leads November 29th title tripleheader in Tokyo

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