John Danaher

Biography

John Danaher is a New Zealand–born Brazilian jiu-jitsu black belt under the legendary Renzo Gracie and one of the most influential coaches in the history of modern grappling. Before dedicating himself fully to jiu-jitsu, Danaher spent years as a philosophy graduate student and teacher at Columbia University, where he developed the analytical framework, communication skills, and structured thinking that later defined his approach to instruction. Despite never competing in jiu-jitsu, he became known for his exceptional ability to break down techniques into clear, logical systems that athletes at every level could apply.

Danaher first gained widespread recognition while coaching at Renzo Gracie Academy in New York, where he began experimenting with Kani Basami entries on visiting wrestlers. These sessions helped shape the inside sankaku position and the broader leglocking framework that later became a cornerstone of the Danaher Death Squad. Under his mentorship, athletes such as Gordon Ryan, Garry Tonon, Craig Jones, and Nicky Ryan developed highly refined systems for leglocks, back control, guard passing, and structured, predictable decision-making. Many of the sport’s leading competitors credit Danaher with shaping their technical depth and strategic development.

After the group’s departure from Renzo Gracie Academy, Danaher moved to Puerto Rico and then Austin, Texas, where he led New Wave Jiu-Jitsu. Following further team changes, he began teaching at Kingsway Jiu-Jitsu where he continues to coach established champions along with a growing roster of promising younger athletes. His extensive catalog of instructional material has also had a massive impact on the global grappling community, redefining how students study, practice, and understand jiu-jitsu through a system-based, concept-driven approach. Danaher remains one of the most important thinkers and teachers in the evolution of no-gi jiu-jitsu.

Personal

* Legend status is reserved for retired athletes with outstanding achievements and a lasting impact on the sport.

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