Renshi Kris Leffler has dedicated his life to the study and teaching of martial arts, with a journey that began in childhood and evolved into a lifelong pursuit after discovering Ninjutsu. Prior to fully committing to Ninjutsu, he trained in Aikido, Karate, and Tai Chi, building a diverse foundation that continues to influence his approach today.
In 2003, Renshi Leffler discovered Ninpiden Dojo in Parker, Colorado, where he began training under Randy Weekley. Under Kyoshi Weekley’s mentorship, he developed not only as a martial artist, but also as an instructor—refining his skills through both discipline and real-world application.
Drawn to Ninjutsu for its depth and variety, Renshi Leffler found a system that continually evolves and challenges him. What began as an engaging practice quickly became something more—an effective, adaptable form of self-defense with clear application in modern environments. This combination of tradition and practicality has remained a driving force in his training and teaching.
In addition to Ninjutsu, Renshi Leffler holds Sensei-level experience in Iaido, Escrima/Arnis/Kali, MMA, and Tai Chi, giving him a well-rounded perspective across multiple disciplines and combat ranges.
As an instructor and dojo owner, Renshi Leffler is passionate about helping others discover what martial arts can truly offer. For him, Ninjutsu provided more than discipline and confidence—it delivered a sustainable, lifelong path of physical challenge, personal growth, and practical self-defense. Today, he is committed to passing that same experience on to his students, helping them build skill, resilience, and the ability to confidently navigate the real world.