More than just a martial arts gym, we are a fun, positive and encouraging community dedicated to helping people reach their goals.  We believe in working hard to help you be the best you can be on and off of the mats.


Our community is built of people from all backgrounds, ages and walks of life coming together to improve themselves physically, mentally and emotionally.  Whether you are looking to get started in martial arts, improve your fitness level or elevate your current training, SBG Scarborough is the place for you.


Training at Straight Blast Gym Scarborough also puts you on the cutting edge of combat sports and fitness.  Our authentic Brazilian Jiu-Jitsu (BJJ), Mixed Martial Arts (MMA) and Muay Thai programs for men, women and children are popular because they are effective in getting people in shape, learning new skills in combat sports and functional self-defense.


Being a part of SBG Scarborough’s community also makes you a part of a larger global community of Straight Blast Gym International.  With gyms located in the US, Ireland, UK, Korea, South Africa, Sweden, Estonia and whose competitors can be seen in the UFC, TUF and some of the biggest Brazilian Jiu-Jitsu competition stages, you will be part of the best martial arts organization in the world.


SBG Athlete and UFC Champion Conor McGregor.



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Our coaching staff is passionate about making champions – regardless of whether or not you ever compete. We believe in working hard to help you be the best you can be on and off of the mats.

Jun Dazai

Founder / Head BJJ Instructor


SBG Scarborough’s founder and head coach, Jun has over two decades of experience teaching and training in Mixed Martial Arts and Brazilian Jiu-Jitsu combined.

One of the first people to train Mixed Martial Arts in Toronto, Jun started in Jeet Kune Do Concepts in 1992 and became one of the youngest instructors and a founding member of the Canadian ‘JKD Family’. During that time, he has trained with numerous instructors worldwide in Brazilian Jiu-Jitsu, JKD, Shooto, Boxing, Muay Thai, Filipino Martial Arts, Wrestling, etc., and has taught classes and seminars in Canada and Japan.

Since 2003, Jun trained extensively in Brazilian Jiu-Jitsu.  In 2006, he began training full-time with Jason Lancucki at SBG Toronto where he was introduced to Straight Blast Gym’s coaching methods.  He currently holds the rank of Black Belt under 4th Degree Black Belt and SBG founder, Matt Thornton.

In June 2015, Straight Blast Gym Scarborough was founded to spread the beauty and power of BJJ and mixed martial arts.

Jeremiah Cabuntocan

Head Muay Thai Instructor


Coach Jeremiah began his Muay Thai journey 12 years ago, originally training at Ultimate Martial Arts, then later on moving to Team Scorpion, becoming a part of the competition team. Since then, he has competed in Kickboxing & Muay Thai matches across Canada and the United States.

In 2011, he started to train in Arnis/Eskrima, and has also competed on several tournaments.

Over the past few years, Jeremiah has been focusing on coaching. His high emphasis of building solid fundamentals, and constant technique repetition make him a suitable coach for beginning practitioners or even for the seasoned Nak Muay.

Growing Gorillas – A curriculum that teaches kids personal development and life skills through martial arts.


Kids Martial Arts & Life Skills Program


Growing Gorillas – the SBG Kids Program – combines the discipline of Brazilian Jiu-Jitsu with personal development and life skills. Kids of all ages and abilities at SBG become independent thinkers and compassionate leaders, learning to navigate all of life’s challenges.


Help your child grow stronger, healthier, happier.


The Growing Gorillas program at SBG Scarborough offers Jiu-Jitsu classes for children ages 5-14 years old in three separate age groups.  The Micro Monkeys are 45 minute classes for ages 5-7 years old, the Chimps classes are 1 hour long for ages 7-10 and the Juniors classes are an hour long for ages 10-15.  Unlike many other sports and recreational programs, our programs run all year round and new students are always welcome to join.  Our rotating 30-week curriculum is designed so that your child can start at any time.


Our Growing Gorillas program schedule is as follows:


Micro Monkeys (ages 5-7 years, 45-minute classes):

  • Mondays @ 5 pm
  • Wednesdays @ 5 pm
  • Thursdays @ 6 pm
  • Saturdays @ 11:30 am


Chimps (ages 7-10 years, 1-hour classes):

  • Mondays @ 4:45 pm
  • Wednesdays @ 4:45 pm
  • Thursdays @ 6 pm
  • Saturdays @ 11:30 am


Juniors (ages 10-15 years, 1-hour classes):

  • Mondays @ 6 pm
  • Wednesdays @ 6 pm
  • Thursdays @ 5 pm
  • Saturdays @ 10:30 am


To Learn More, Sign Up for a FREE Private Lesson for your Child Today!


Give Your Kid REAL Confidence To Stand Up To Bullies


Confidence is a major key in long-term success in a child’s life and a major deterrent for unwanted bullying.   Instilling our kids with confidence and a strong will is paramount to them having a successful school career, not to mention giving them a huge head start in a world that values charismatic and resilient adults.


Many other styles of martial arts out there are instilling false confidence in their students claiming that what they are learning should work.   At SBG we make sure that the techniques and skill sets we teach actually works!  Since most altercations with kids fall to the ground and grapple, Brazilian Jiu-Jitsu is ideal as it allows even a small person to control and neutralize and dominate a larger opponent using techniques they practice in class every week.  By practicing our techniques against other kids in class, we build confidence in Jiu-Jitsu and in their everyday lives.

We’re Not A Belt Factory….All Belts Are Earned


At Straight Blast Gym, we are big believers in earning your belt promotions.  While other martial arts are constantly “promoting” their students to the next belt (always with a hefty upgrade fee attached) , we believe in putting in the work before you get the reward.  From a young age, we want to instill the belief that to accomplish something you need to put in hard work.  We believe that belt promotions are earned through more than just showing up for class, but by showing progression on the mats and setting a good example for the other students with their behavior and attitude.


When belt promotions are achieved, there is NO COST TO THE PARENT!  We want both the parent and child to both know that the promotion was earned, not bought, so we cover the expenses involved in all belt promotions

Training at Straight Blast Gym Scarborough puts you on the cutting edge of combat sports and fitness. Our authentic Martial Arts programs offer Functional self-defense, expert instruction and a great workout.

Brazilian Jiu-Jitsu (BJJ) is a martial art and combat sport that teaches a smaller person how to defend himself or herself against a larger adversary by using leverage and proper technique. The Gracie family, the founders of BJJ, modified judo and traditional Japanese jujitsu to create the art.


Why Jiu-Jitsu?

  • Great source of cardiovascular exercise which promotes good overall health.
  • Great core workout which helps a person with overall stability and balance.
  • Learn to be calm under pressure, which can help a person learn to relax during normal hectic problems of their daily encounters.
  • Teaches very important self-defence techniques.
  • Builds self-confidence.
  • Family-oriented and a great way to make friends.
  • Teaches intricate techniques which helps promote problem solving and critical thinking skills.
  • Jiu-Jitsu promotes a healthy diet.
  • Jiu-Jitsu is for everybody regardless of age or gender.



Muay Thai or Thai Boxing is the national sport and cultural martial art of Thailand. It was developed several hundreds of years ago as a form of close-combat that utilizes punches, kicks, knees, elbow strikes as well as countless combinations, counters and defenses to keep you safe on your feet.


All Muay Thai Classes are action packed and will provide you with a great cardio workout while you learn how to defend yourself and most importantly, have fun.


Why Muay Thai?

  • Great source of cardiovascular exercise which promotes good overall health.
  • Great whole body muscular workout. You’ll be having so much fun, you’ll forget you’re working out.
  • Great core workout which helps a person with overall stability and balance.
  • Teaches very important self-defence techniques, proper form and is not just another boxercize gym.
  • Builds self-confidence.
  • Muay Thai is a great way to relieve everyday stress.


Women's BJJ
Join a community of local women in a class suitable for every BODY to learn and train practical self-defense through Brazilian Jiu-Jitsu. An empowering full-body workout that inspires confidence and promotes a growth mindset and lifestyle.

Join a community of local women in a class suitable for every BODY to learn and train practical self defence through brazilian jiu jitsu. An empowering full body workout that inspires confidence and promotes a growth mindset and lifestyle.

This class is a Foundations class suitable for all levels regardless of fitness level.


Why Train Jiu-Jitsu?

  • Practical Self-Defence
  • Community Atmosphere
  • Dynamic Full Body Workout
  • Confidence and Empowering



Micro Monkeys (Ages 5-7)

Our Micro Monkeys program is designed to introduce our youngest students to Jiu-Jitsu and help build coordination.  The curriculum includes fun, fast-paced games & interactive drills to teach Jiu-Jitsu movements and fundamental techniques.  Monthly life-skills are also introduced and discussed to promote and reinforce strong core values.

Chimps (Ages 7-10)

Our Chimps program helps to develop focus, coordination, strength and understanding of Jiu-Jitsu.  Heavy emphasis on partnered drills teaches them how to be a great teammate and to develop confidence in through play.  Monthly life-skills topics are discussed to help ensure positive development on and off the mats.

Juniors (Ages 8-13)

The Juniors program is designed to build a strong foundation and improve student’s coordination, strength and understanding of Jiu-Jitsu through interactive drills and movement specific games.  Monthly life-skills topics are discussed emphasizing growth both on and off the mats.


Our adult Foundations program is where all new comers start their SBG journey, whether they’re beginners or have years of training under their belt. In this class, we work on fundamentals – the postures and positions that allow our students to train safely. To us, fundamental doesn’t mean most basic; fundamentals are essentials. Our Foundations program is the artful introduction where the beginnings of great relationships are born.

Women’s BJJ 

Train with women, taught by women.  Our Women’s Jiu-Jitsu program is a Foundations level program to introduce women to the art and sport of Brazilian Jiu-Jitsu.  All levels welcome.

Combat Athlete Program (CAP) – Invite only

Our adult Combat Athlete Program will take your training to the next level. In this class we dive deeper into each art to understand the concepts and strategies required play at a higher level. Along with more drilling and isolated sparring, each member will improve their fitness so the mind body relationship are further established.

MMA Comp – Invite only

Our adult MMA program helps to seamlessly blend all ranges of combat, from standup, clinch and ground, to produce well rounded martial artists and fighters.  To be eligible for this program, each athlete must complete the Foundations BJJ and Muay Thai programs.  This will take your fitness level and your understanding of fighting to a whole new level.

Open Mat – Members only

Open Mat times are free use of our facilities where members can spar, drill techniques, workout or just hang out.

Straight Blast Gym Scarborough Ltd.
(416) 908-1756
(By appointment only.)

489 Brimley Rd. Unit #2
Scarborough, Ontario

Getting there:

We are located at 489 Brimley Rd. Unit #2.  Follow the driveway to the right/south of ‘Dance Fusion’ to Unit #2.