Jim matelski
LeaD Instructor
Jim Matelski is the Lead Instructor of Umineko Dojo. Jim's journey in martial arts began at a young age and over the years he has cultivated a deep understanding of the discipline, marked by dedication, perseverance, and a commitment to excellence.
While Jim's professional endeavors extend beyond the martial arts realm, his passion for Genbukan remains a cornerstone of his life. As the Lead Instructor, Jim plays a vital role in guiding students on their own paths of martial arts discovery. His years of experience, coupled with a genuine enthusiasm for teaching, make him an invaluable resource for students seeking to enhance their skills and deepen their understanding of the art.
Jim extends his knowledge and expertise to martial arts enthusiasts, offering insights, tips, and resources to support their journey of growth and development. Whether you're a seasoned practitioner or a newcomer to the world of martial arts, Jim's guidance provides a valuable foundation upon which to build your skills and cultivate a deeper appreciation for the arts of Genbukan.
In any class where Jim leads, the spirit of our martial art thrives under the guidance of this dedicated martial artist.
credentials
Umineko Dojo Titles
Umineko Dojo Lead Instructor
Genbukan Experience & Credentials
Genbukan Taijutsu 2nd Dan
KJJR Jujutsu 3rd Dan
Bikenjutsu 6th kyu
Bojutsu Shokyu
Koryu Karate 8th kyu
Goshin-jutsu 7th kyu
Gikkan Ryu Koppo-jutsu Kirigami
Daito Ryu Aiki Jujutsu Kirigami
Tessen Jutsu/Sensu Dori Kuden Mokuroku Kirigami
Other Experience & Credentials
Kodokan Judo Ikkyu (1st kyu)
Certified State Judo Coach Level 1
SafeSport Certified
Genbukan Umineko Dojo Instructor Certified
Anthony Rivera
Assistant Instructor
Anthony Rivera is a dedicated assistant martial arts instructor with a strong foundation in the traditional Japanese arts of Jujutsu and Ninpo. Beginning his training in the Genbukan system at an early age, Anthony brings disciplined, hands-on experience to every class, supporting students of all levels in developing their technique, mindset, and understanding of these time-honored martial disciplines.
Driven by a passion for continuous learning and a deep respect for martial tradition, Anthony emphasizes discipline, fluid movement, and self-awareness—guiding students to grow both physically and mentally. Known for his patient and approachable teaching style, he works closely with students to foster a respectful, focused, and empowering training environment.
Whether assisting with beginner classes or helping refine techniques with advanced practitioners, Anthony is committed to building confidence, resilience, and a strong sense of community within the dojo.
credentials
Umineko Dojo Titles
Umineko Dojo Assistant Instructor
Genbukan Experience & Credentials
Genbukan Taijutsu 2nd kyu
KJJR Jujutsu 1st Dan
Goshin-jutsu 9th yku
Biken-Jutsu 9th kyu
Bojutsu Sho kyu
Connor Matelski
Assistant Instructor
Connor Matelski began his martial arts journey at the age of nine, inspired by his father’s dedication to the discipline. He initially trained in Kodokan Judo, earning his purple belt by the age of 15, before expanding his practice to Genbukan at 14. Drawn to the art’s depth and philosophy, Connor has remained committed to Genbukan.
Connor plays an active role in supporting classes, guiding students, and fostering a positive learning environment. He is passionate about both teaching and personal growth, continuously refining his skills alongside his Sensei and fellow students. His dedication to martial arts and enthusiasm for mentorship make him a valuable member of the Umineko Dojo.
credentials
Umineko Dojo Titles
Umineko Dojo Assistant Instructor
Genbukan Experience & Credentials
Genbukan Taijutsu 1st kyu
KJJR Jujutsu 1st Dan
Bikenjutsu 8th kyu
Koryu Karate 8th kyu
Goshin-jutsu 7th kyu
Tessen-Jutsu/Sensu-Dori Kirigami
Araki Shin Ryu Jujutsu Kirigami
Other Experience & Credentials
Kodokan Judo Purple Belt
Paul Luna
Assistant Instructor
With over 15 years of experience as a special education teacher, Paul Luna has dedicated his career to empowering others through learning and personal growth. His journey in martial arts began in childhood and continued through high school and college, where he trained in disciplines such as Taekwondo and Aikido.
He discovered Genbukan while searching for a self-defense program for his daughter. Seeing her joy and growth in training inspired him to join the dojo as well. Since then, he has embraced the art and the strong sense of community it fosters. The connection between students and instructors has always resonated with him—perhaps a reflection of his passion for teaching.
As a proud member of the Genbukan family, he is honored to share his knowledge and help others develop confidence, discipline, and skill in their martial arts journey.
credentials
Umineko Dojo Titles
Umineko Dojo Assistant Instructor
Genbukan Experience & Credentials
Genbukan Taijutsu 3rd kyu
KJJR Jujutsu 1st kyu
Bikenjutsu 7th kyu
Bojutsu - Sho kyu
Koryu Karate 9th kyu
Goshin-jutsu 8th kyu
Tessen-Jutsu/Sensu-Dori Kirigami
Other Experience & Credentials
Aikido
Tae Kwon Do
State of Wisconsin Juvenile Martial Arts Instructor License