[1] On September 14, 2016, Bushido Road announced the establishment of a new kickboxing promotion called Knock Out.
It was headlined by a muay thai bout between Sirimongkol PKsaenchaimuaythaigym and the Rajadamnern 135 lbs champion Genji Umeno.
On the same day, Knock Out announced that they had entered into a partnership agreement with Rebels, another kickboxing and muay thai promotion.
[7] On June 15, 2020, Bushido Road sold Knock Out ownership rights to Def Fellow, the operating company of Rebels.
[8] At a press conference held on September 28, 2020, producer Genki Yamaguchi announced his retirement.