Martial-arts entertainment planning and promotion
 is a defunct martial arts entertainment planning and promotion brand, which was established in 2010 and merged into Knock Out in 2021.
History.
Rebels was established by the former two-weight Martial Arts Japan kickboxing champion Genki Yamaguchi on December 1, 2009, with the aim of popularizing the sport of muay thai in Japan. The inaugural event was held jointly by M-1 Challenge and Cross-Point on January 29, 2010, and was headline by a lightweight bout between Arashi Fujihara and TOMONORI. Starting with the third event, Rebels-EX, Cross Point broke their partnership with M-1 and remained as the sole promoter and organizer of the events.
On June 11, 2011, Rebels announced a partnership with the Dutch-based It's Showtime, which allowed cross-promotion and mutual exchange of fighters under contract. The first joint event was held on July 18, 2011, under the name “Stand up JAPAN!” REBELS × IT'S SHOWTIME 〜 REBELS.8 〜 and was headlined by a -61 kg title eliminator between Rebels contracted Kan Itabashi and Genki Yamamoto.
On October 28, 2012, Rebels announced events from that point forward would be held under two rulesets: Rebels rules, which was similar to K-1 and Rebels Muay Thai rules, which allowed for elbows, sweeps and five-round bouts.
Rebels entered into a partnership with Knock Out on May 20, 2019, which likewise held events under kickboxing and muay thai rules. On June 15, 2020, Bushido Road sold Knock Out ownership rights to Def Fellow, the operating company of Rebels. The final Rebels event, "REBELS～The FINAL～", was held on February 28, 2021. A month later, the brand was merged with Knock Out.
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Championships history.
Rebels Super Welterweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Welterweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Super Lightweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Lightweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Super Featherweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Featherweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Super Bantamweight Championship.
Rebels Muay Thai Rules
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Rebels Super Flyweight Championship.
Rebels Rules
Rebels Muay Thai Rules
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Rebels Flyweight Championship.
Rebels Muay Thai Rules
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Rebels Women's Atomweight Championship.
Rebels Muay Thai Rules
References.
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