Hamilton Ontario's leader in martial arts training. Classes available for Brazilian Jiu-Jitsu (BJJ), Kickboxing, MMA, Boxing and more…


Jeff Joslin – Head Instructor

Jeff “The Inferno” Joslin is a martial artist in the truest sense of the term. Born and raised in Hamilton, Ontario, Canada, Jeff grew up engulfed in the martial arts. His father, Rick, a three-time Canadian karate champion, opened up the family academy back in 1967.

Starting his training at only five years of age, Joslin has developed tremendous depth in his martial arts skills. A black belt in both Karate (5th Degree) and Brazilian Jiu-Jitsu (1st Degree), Jeff has accomplished much in the sport:

  • Won over 200 first place titles in striking, Brazilian Jiu-Jitsu and submission wrestling competition spanning two decades
  • Was the First Canadian in History to win an International Brazilian Jiu-Jitsu Tournament (Pan/American BJJ Championship 2002)
  • IBJJF Master’s Worlds – Black Belt – Bronze Medalist (2016)
  • Grappler’s Quest U.S Nationals submission wrestling champion
  • Arnold/Gracie World BJJ Championships middleweight and open weight champion
  • 2013 IBJJF Chicago Summer Open Champion
  • Apex Fighting MMA World Welterweight Champion
  • Fought in the UFC, TKO, Hardcore Fighting Championships and many other shows

Jeff possesses a unique mixed martial arts striking style that blends the best of his extensive karate and kickboxing background with the strong boxing skill set he developed through many years of training with some of Canada’s best boxers and trainers.

As a coach/instructor Jeff has worked with thousands of students –from 3 Year olds to men and women in their late 60’s– since he first began teaching full-time back in 1994. He was also the head coach for Spencer Fisher’s UFC 120 Training Camp –Spencer won by unaminous decision) and has trained many champions over the years.

Here’s a Highlight Video of Jeff’s Pro MMA Career:



Rick Joslin – Founder/Instructor (Striking, Children’s program)

An 8th Degree Black Belt in Wado-Ryu Karate –graded in 2000 by the late Masura Shintani–, Rick Joslin opened Joslin’s Mixed Martial Arts in 1967 and has taught his art to thousands of students over the last four decades. Training in the Martial Arts for over 45 years he has amassed an impressive list of accomplishments along the way:

  • 3 Time Canadian Heavyweight Karate Champion
  • Member of the Hamilton Sports Hall of Fame (Inducted in 2013)
  • Member of the Canadian Karate Hall of Fame (Inducted in 2014)
  • Won over 50 Black Belt Championships between 1967 – 1978
  • Set a Canadian record by obtaining his 1st Degree Black Belt within 18 month of training
  • Martial Arts Association recognition as “Best Centre Referee” in 1999
  • Creator of Customized Referee Training Clinics and Karate Judging Programs
  • Runs the Prestigious Canadian Open Martial Arts and Grappling Championship annually in November. This event takes place in Hamilton, Ontario. Awarding 1st place Competitors the prestigious Championship Title Belt.

As Head Kickboxing Referee for the Ontario Athletic Commission for many years, Rick refereed over 30 World Title Fights. The Canadian Karate Hall of Fame Inductee continues to stay involved in the sport and enjoys passing on his knowledge to the adults and children that attend his classes at the martial arts school which bears his name.

Jason Powell – Brazilian Jiu-Jitsu

With more than 12 years of training experience Jason has developed tremendous ability and technical skill in the art of Brazilian Jiu-Jitsu. He possesses a very unique and exciting style builds upon a solid understanding of the basics with movements that are fun and highly effective.

A a Brazilian Jiu-Jitsu competitor Jason excelled throughout his competitive career, winning gold medals at many prestigious tournaments over the years including the Arnold/Gracie BJJ Championships, the Canadian Nationals and the Joslin’s Canadian Open.

Jason has a strong passion for teaching and loves passing on his vast BJJ knowledge to others. His wit, and bad humor keeps people on their toes and the exciting way that he teaches class has his students deeply engaged from start to finish. Every person that steps onto the mat to train in his class is guaranteed to learn things correctly due to the large amount of time and focus Jason gives to all.

Dave Mark – Brazilian Jiu-Jitsu

Dave has been involved in athletics for most of his life. An early passion for weight lifting developed when he was in his teens and at 38 years of age Dave began training in the martial arts. The first discipline he studied was Karate; Brazilian Jiu-Jitsu followed soon after and he`s been training in it ever since.

In 2001 Dave earned his black belt in Karate from Rick Joslin and 14 years into his training he became one of Jeff Joslins first 2 Brazilian Jiu-Jitsu blackbelts.

Dave`s love for the art of Brazilian Jiu-Jitsu is obvious to all who share the mats with him. At 50+ years age, the young guys may at first think they`ve got the upper hand on Dave due to there youth, speed or intensity. Moments later they know differently as they are swept, twisted and squeezed into submission by the humble and incredibly skilled BJJ Black belt.

Dave BJJ classes are fun, challenging and very motivational. His ability to break down techniques into the smallest of details leaves everyone that attends his lessons with some new and exciting tricks on the mat.

An important part of the team Joslin, Dave has helped many our our students achieve their personal goals both on and off the mats and is an inspiration to many.

Dean Massicotte – Brazilian Jiu-Jitsu

Dean’s martial arts journey began when he was a young child with both karate and boxing training. In his early twenties, after watching the UFC for the very first time, he immediately had an interest in learning the art that Royce Gracie was using to dominate every one of his opponents inside the octagon.

Assessing his already well established martial arts skill set, he knew there was something missing. He felt strongly that he had to learn how to fight on the ground in order to be a complete martial artist. His search for real grappling skill led him first to Judo and when he later moved to Hamilton he quickly found Joslin’s and has been an important member of our team ever since.

“What I noticed right away about Joslin’s was the friendly atmosphere, competive spirit, and Jeff’s passion for the sport and his desire to constantly learn and improve his skills.” says Dean. “I’ve never trained with anyone with so much desire and dedication before, and felt really lucky to be here.”

Dean won many medals and championships over an eight year competition career and eventually achieved the rank of Blackbelt –one of the first two BJJ black belts Jeff had ever awarded– in the art after more than a decade of training.

He then began to focus on teaching the art, giving back to the students at Joslin’s by bringing out the best in them on the mats. Always emphasizing a solid understanding of the basics, mixed with the development of the innovative skills of an art that is constantly evolving, Dean teaches his lessons in fun and exciting ways.

Dean states “I also like to encourage students to step outside their comfort zone, and spar people that will give them a challenge. This will prepare them mentally when they have to compete, or defend them selves in a real life situation.”

Dean is a valuable asset to the Joslin’s Brazilian Jiu-Jitsu Team and he has helped many of our students achieve both their competitive and non-competitive goals in the sport.


Latest Posts

  •   Best martial place ever amazing instructors and Amazing environment.

    thumb Logan Fletcher
  •   I have my boys at Joslin's for over 3 years and I can see how much confidence they have gained. Watching them giving their best at the dojo or the tournament has inspired me and therefore joined Jeff's BJJ class last year. It's almost like my second home and the camaraderie is just great. The classes are always interesting and sensies are always encouraging me to give my very best and learn something new.

    thumb Stephan Schmidt
  •   It was my mission to find 16 young hockey players a place to condition , get stronger,tougher ,learn balance and get motivated.. I found it with Joslin's Mixed Martial Arts.. Jeff these boys loved every session you gave them. We saw a difference on the ice they looked tougher and no one was pushing them around.I even heard one of our boys quote something you told him. Jeff you were wonderful with these kids, it shows that this is your passion.. Thanks for everything over the last few months. Fingers crossed the boys are on to winning their playoffs!! Hope to see you next year with another set of hockey players.. Sincerely the Peewee Glanbrook Rangers

    thumb Kim Hatcher-Cassiani
  •   Great place to challenge yourself mentally and physically love the people I have met over the years and always welcoming the new comers and get them to work hard and push them out of their comfort zone

    thumb Phil Howitzer
  •   Professor Double J (thats J-E-double F, J-O-S-L-I-N) is an absolute inspiration for me. He balances the family, multiple job duties (including the gym) and does it all with genuine love and desire. He has a very contagious energy and personality that makes all feel welcome. His output on the mat is second to none, and at his age it just goes to show that if you apply yourself, anything is possible. Nobody acquires and shares knowledge at the level Jeff does, and the best part of it all is that he doesn't try to go out on a limb to prove himself: all the proof you need is to simply be a part of it. Everyone at the gym is friendly and helpful. Great leadership builds great character. I would recommend this gym to anyone.

    thumb Michael Katilus
  •   I've been a member of this Dojo for at least 5 months now. I can tell you that I've never felt more fit . From Jeff and all the coaches to all its members , Joslins is truly a great positive energized place to get fit, have fun, build confidence and be inspired to find your greatest self at any age, or any fitness level. I recommend Joslins to any one that wants to find there own greatness because Joslins will help you find it with a little hard work. I plan on being a member for a long time .

    thumb Garry Johns
  •   I can't tell u the time I had here and looking forward to coming back kids love this place I love this place :)) How can anybody not love this place taking personal growth to a whole new level

    thumb Kyro Parry
  •   No question. 5 stars! This is a world class gym with great people! Jeff takes a lead role in running his business and doesn't pawn off responsibility. I learned a lot and had one of the hardest work outs I've had in a long time. Very fair pricing and wide open scheduling. Recommended and highly!

    thumb Ryan Potts
  •   Jeff is one of the best, proud to know him. Joslin's gym produces excellent athletes in and outside the ring!!!!

    thumb Kru David Crawley
  •   I moved to Hamilton and started training under Jeff and his Cadre of Black Belts just over a year ago. Previously I trained under Rodrigo Munderuca in Winnipeg and Mike Yackulic in Edmonton, both amazing instructors. The dedication and skill level of EVERY Belt at Joslin's is on a level I have not seen before. This is no disrespect to my previous instructors as they have great clubs and great people. This is to say Joslin's really is something special and anyone who has any inclination of trying a martial art near Hamilton should come to Joslin's first. You won't regret it!

    thumb Jay Wily