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by Duane Ludwig is a comprehensive 4-part instructional series designed to elevate a fighter's accuracy, timing, and safety in live combat. As a world-class coach who led T.J. Dillashaw to UFC gold, Ludwig translates complex elite-level concepts into practical, drillable fundamentals suitable for all skill levels. Core Curriculum & Techniques

Ludwig’s system, often referred to as , is noted for its efficiency and "Ninja" variations:

The series is organized logically, moving from static defense to active countering and specialized kick defense: