Shootboxing

Shootboxing was created in 1985 by Caesar Takeshi and is both a promotion and a ruleset. It permits throws, standing chokes and standing joint locks alongside conventional striking, while standing the fighters up the moment the action reaches the mat.

That combination produces a threat model no other kickboxing code has. Dropping the head to slip a punch invites a front headlock; posturing up against a throw exposes the chin. Fighters who compete there develop clinch literacy that pure strikers lack, because the penalty for a poor clinch position is not a referee break but a submission.

Andy Souwer holding world titles under both shootboxing and K-1 rules simultaneously is the clearest illustration of how far apart the two codes are and how rare it is to master both.