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What Is Bo-Ka-Jitsu
Bo-Ka-Jitsu at it’s best in Cache Valley, located at the South end of Logan, UT at TDF Martial Arts Academy.
Bo-Ka-Jitsu is an intricate and robust martial art form, conceived in the mid-seventies by Master Daniel Timothy Lee, a 10th Dan, who was also honored with the distinguished Medal of Valor. This martial art represents a potent fusion of Boking, Karate, Shotokan Karate, and Japanese Jujitsu, reflecting Master Lee’s comprehensive training and vast experience in various martial arts disciplines.
Master Lee’s journey in martial arts was shaped heavily by several prominent figures. Among them, Jon “Bangon” Langon, an accomplished boxer and Shotokan 4th degree black belt, had a significant influence. Langon’s competitive spirit and technical prowess were evident in his extraordinary record: 35-time black belt grand champion and a two-time Golden Gloves Boxing Champion. Langon’s skills and fighting philosophy had a profound impact on Master Lee, shaping the core principles of Bo-Ka-Jitsu.
Another person of note who influenced Master Lee was his great uncle, William Walker, a Pearl Harbor survivor and an undefeated middleweight boxing champion in the Navy Fleet. Walker’s resilience and fighting spirit served as an inspiration for the creation of Bo-Ka-Jitsu, emphasizing the importance of fortitude and determination in overcoming adversity.
Professor Larry Cary, a 10th Degree Black Belt in Danzan Ryu Jujitsu and founder of Unity Martial Arts, significantly influenced Master Lee’s approach to martial arts. Cary’s illustrious career included roles as Director of USA JuJitsu & Martial Arts Federation, US Director for the World Council of Ju-Jitsu Organisations, and coach of the 1998 USA JuJitsu Team. His vast experience and deep understanding of martial arts have made a significant contribution to the evolution of Bo-Ka-Jitsu.
Sensei Robert J. Hunt, a 7th Dan in Bo-Ka-Jitsu and brother-in-law of Master Lee, is another key figure in the development and propagation of Bo-Ka-Jitsu. Hunt’s extensive background in wrestling, boxing, and martial arts has significantly influenced the teachings and practice of Bo-Ka-Jitsu. He started his training at a very young age under his father, Gerald Hunt, a Golden Gloves Boxing Champ, and Kempo Karate practitioner. His journey was further enriched by various masters in different martial arts disciplines, including “Old school TaeKwonDo” under Paul Dicks and Master Chong, Shorinji Kempo and Kyu Shin Ryu (Kempo) under Master Gary Conors, and Chiroko Ryu under Master Brent Undhjem. Master Undhjem’s proficiency as a trainer is underlined by his achievement of coaching seven world champion fighters.
Today, as the Senior Instructor of Bo-Ka-Jitsu, Robert J. Hunt has integrated his vast knowledge and skills into the system, significantly influencing its evolution. In recognition of the need for diversity in martial arts, Hunt has established two distinct paths within Bo-Ka-Jitsu. The first path adheres to traditional martial arts principles, emphasizing discipline, form, and spiritual growth. The second path leans towards Mixed Martial Arts (MMA) and practical, real-world self-defense without rules, focusing on survival and effective combat.
Bo-Ka-Jitsu is more than just a martial art; it’s a personal journey of evolution and self-discovery. It invites its practitioners to constantly challenge themselves, to forge their spirit in the fire of their will. Bo-Ka-Jitsu isn’t merely about physical strength and fighting prowess; it’s about cultivating an indomitable spirit, resilience, and an unwavering will – principles that form the core of this dynamic and ever-evolving martial art.
Our Students No Longer Struggle With
Confidence
As you progress in your Martial Arts journey, you'll gain confidence in your own abilities and feel more self-assured in your daily life. You will be part of the greatest Martial Arts community in Utah, where everyone is like-minded and supports each other.
Self Defense and Fitness
Not only will you learn an effective Martial Arts System to enable you to no longer have a victim mentality and therefore be able to stand up to bullies and if needed you will even be able to defend yourself/your loved ones. In addition to that, you will also develop strength, flexibility and endurance.
Resilience
Our classes develop discipline, focus, and physical and mental toughness. You will learn how to control your emotions and concentrate on your goals and your self-esteem will soar!
Who We Are And Why You Should Train Here
Since we’ve opened, we’ve been dedicated to changing the lives of people through Martial Arts. We strive to provide a safe, clean, comfortable and welcoming atmosphere for all students and family members. We take pride in creating an environment for individuals to achieve, develop and succeed in their personal goals. We strongly believe that Martial Arts can be for everyone, regardless of age, gender, or experience level. This is why we are super confident that it will enable every member to achieve greatness and the option to live their best life...
Meet Our Coaches
Head Coach Rob Hunt
Rob (Owner of TDF Gym) started his training at age 5 and competing at age 6 under his father, Gerald Hunt, who was a Golden Gloves Boxing Champ, Wrestler and Kempo Karate practitioner. He wrestled all through high school and 46 years later still competes in martial arts. His journey was further enriched by various masters in different martial arts disciplines, including “Old school TaeKwonDo” under Paul Dicks and Master Chong, Shorinji Kempo and Kyu Shin Ryu (Kempo) under Master Gary Conors, Bo-Ka-Jitsu Jitsu (a fusion of Boxing, Karate, Shotokan Karate, and Japanese Jujitsu) under Master Daniel T. Lee and John “Bangon Langon” (Master Lee has mentored Rob for over 39 years), lastly Chiryoku under Grand Master Brent Undhjem who has coached seven world champion fighters.
Head Coach Jonathan Semetko
Jonathan Semetko is a lifelong martial artist. He holds a 5th Dan in Tae Kwon Do, a 6th Dan in Bokajitsu (Jujutsu), and a 4th Dan in both Judo and Hapkido. He is 2x National Champion, and 1x US Open Champion under USA Judo at M3 Heavyweight. And was the end-of-year Nationally ranked #1 at M3 Heavyweight in both 2021 and 2022 under USA Judo. He is a certified International Level Coach with additional Visually Impaired Judo and Police Judo (P3 Program) credentials under USA Judo. His Judo club was ranked in the top 25% of competitive clubs in the country in 2021 and 2022. He has students who have qualified and represented the United States in International Judo competitions. Several of his students now operate their own clubs in various States. He serves as President of the Utah State Judo Board under USA Judo, and on the United States National Board of Directors of the Global Hapkido Association (GHA), and on the National Diversity and Inclusion Committee of the United States Judo Association (USJA). Jon is a career Special Education teacher with nearly 20 years of professional experience in the classroom. He specializes in teaching students using the psychological principles of self-determination and in supporting students with significant special learning and behavioral needs.
Head Coach Tanner Spillman
Tanner coaches BJJ, MMA, Bo-Ka-Jitsu (Brown Belt), Strengthening & Conditioning, Muay Thai & Boxing (Team USA Certified).
Head Coach Greg Nielsen
Gred coaches Wrestling, Bo-Ka-Jitsu (Black Belt) & Jiu-Jitsu.
Head Coach Sam Bingham
Sam coaches Jiu-Jitsu, Judo & Hapkido.
Head Coach Josh Baird
Josh coaches Jiu-Jitsu & Wrestling.
Head Coach Mr. Pollert
Mr. Pollert coaches Judo, Hapkido and Taekewondo.
Head Coach Matt Pinner
Matt teaches Judo. Before moving to Utah, he studied at Cohen’s Judo Club in Illinois and was a High School National and Junior National medalist. Also in Illinois, Matt was an attorney practicing personal injury law. He now works for Utah State University as the Executive Director of the Civil Rights and Title IX Office.
Head Coach Hillary Israelsen
Master Israelsen started taekwondo In the fall of 1996. She made the rank of black belt in 2000. She continued Training and fell in love with teaching. She had the opportunity to teach hundreds of students from little 4 year olds to grandparents, along with creating an adaptive Taekwondo program for Shriner’s Hospital for Children. She has taught many women’s self- defense classes and works toward empowering those she meets with confidence and belief in themselves. She has helped many students earn their next belt rank and ultimately helped them earn their black belt. She has competed in many Olympic style Taekwondo tournaments including state and national level competitions and was a medal winner at the 2017 and 2018 Taekwondo National Championships. She earned the rank of 5th Dan Black Belt in 2017 and continues to work hard and train in preparation for her 6th Dan Black Belt test. She also has a Black Belt in Haidong Gumdo (Korean sword art), a bachelors degree in Exercise and Sport Science, a masters degree in Psycho Social Aspects of Sport, and is raising her four beautiful children with her amazing husband.
Head Coach Sam
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Head Coach Issac
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Our Schedule
⬇️ To schedule a trial class select your program of choice below ⬇️
Our Programs
Kids Programs (6 to 14 y/o)
KidsTaekwondo
This kids’ Taekwondo class teaches powerful kicks, focus, and respect through structured lessons that improve flexibility, discipline, and confidence in a safe, encouraging setting tailored for young martial artists.
Kids Hapkido
A Hapkido kids’ program blending self-defense and grappling skills. Hapkido teaches kids balance, awareness, and discipline while helping them grow in confidence and fitness through playful, structured martial arts drills.
Kids Judo
In this beginner-friendly Judo program, kids learn throws, falls, and discipline in a safe and controlled setting. Perfect for building strength, focus, and coordination while having fun and staying active with others.
Kids Jiu-Jitsu
This kids’ Jiu-Jitsu class builds body awareness, confidence, and problem-solving through grappling and ground techniques. Kids develop discipline, teamwork, and control in a safe, respectful, and energetic class.
Little Ninjas (Ages 3-6)
A fun and active martial arts class for ages 3 to 6 that builds balance, focus, and coordination through age-appropriate games and exercises. A perfect way to introduce young kids to discipline, respect, and movement skills early.
Teens & Adults Programs (15 y/o +)
Teens & Adults Jiu - Jitsu
A technical and challenging class focused on real-world grappling and ground control. Teens and adults build strength, resilience, and discipline while mastering self-defense through structured Jiu-Jitsu instruction.
Teens & Adults BoKaJitsu
A powerful hybrid martial arts system combining striking and self-defense. Bokajitsu challenges the mind and body, helping teens and adults develop confidence, awareness, and tactical skills for real-world situations.
Teens & Adults Striking
Focused on boxing, kickboxing, and striking drills, this class helps teens and adults build power, speed, and coordination. Learn technique, footwork, and combos in a dynamic and high-energy martial arts setting.
Teens & Adults Taekwondo
This Taekwondo class emphasizes speed, flexibility, and self-discipline. Teens and adults improve focus and body control while learning powerful kicks and forms rooted in traditional martial arts philosophy.
Teens & Adults Hapkido
Hapkido blends traditional techniques with modern self-defense. Ideal for teens and adults who want a practical, effective martial art that enhances awareness, control, and skill through hands-on practice.
Teens & Adults Judo
This class focuses on leverage, throws, and takedowns in a safe, respectful environment. Teens and adults gain confidence, improve fitness, and build a solid foundation in classic Judo skills and techniques.
Teens & Adults Cardio Kickboxing
This class focuses on leverage, throws, and takedowns in a safe, respectful environment. Teens and adults gain confidence, improve fitness, and build a solid foundation in classic Judo skills and techniques.
What Our Students Say About Us...
"We love TDF Gym!"
"The coaches here are really good"
"I would recommend everyone to join TDF Gym!"
"They see where a need is and they can address it"
We Are Also Rated 5 Stars On Google
Will My Child Become A Bully?
We find that our students become more confident in standing up to bullies and have more humility and kindness toward others through their Martial Arts lessons.
Are Parents Allowed To Watch?
We encourage parents to watch their children in their kid's martial arts lessons. We love parents getting involved! And so do their kids. Even better… join into some of our martial arts classes for adults. Your kids will love that you have something in common. It will build a strong family bond!
Additionally, if you want some ‘me-time’? Simply drop them off, and go grab a coffee. They will greet you with a huge smile when you return because they had SO much fun!
My child struggles to focus
The modern world presents many problems for concentration and focus, with distractions everywhere. Each session of Martial Arts will improve your child's focus incrementally as they are motivated to learn something new and different - this will require lengthy concentration.
My child is shy will this help?
Yes, we understand that social skills are a crucial aspect of childhood and a lack of them can show and affect the child as they grow older. Martial Arts, with its teamwork and skill sharing, is one of the activities that encourages and promotes this in a healthy way.
Can I Join As A Beginner?
Absolutely! Everyone is welcome at our school, regardless of their skill level or physical shape!
Will it help me loose weight?
Martial Arts training is a fun way of staying in shape - adults who take up our training have less body fat than those with a more sedentary lifestyle.
Will This Help My Fitness?
Martial Arts training is an excellent form of exercise - scientific studies have proven that adults who take part have better stamina, strength, flexibility and muscle endurance.
I Struggle With Self Discipline
Forget social networks and text messaging - training in Martial Arts develops focus and improves levels of concentration through its set tempo and exercises in-cooperating focus and breath control.
We’re located at
708 W 1940 S Building 20, Unit 101, Logan, UT 84321
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