Certified Brazilian Jiu-Jitsu instructors at Gracie Barra Saint-Laurent Ville Saint-Laurent Montreal
Gracie Barra Saint-Laurent · Ville Saint-Laurent, Montreal

Meet Our
Instructors.

World-class certified Brazilian Jiu-Jitsu coaches dedicated to structured, safe, and premium quality instruction for kids, teens, and adults in Montreal.

Leading Gracie Barra Saint-Laurent

Professor Demetrios Diavatopoulos head instructor Gracie Barra Saint-Laurent Montreal
Owner & Head Instructor
Demetrios Diavatopoulos
Professor · Gracie Barra Saint-Laurent
3rd Degree Black Belt

Professor Demetrios is a certified 3rd degree Brazilian Jiu-Jitsu black belt trained directly under multiple-time BJJ World Champion Professor Bruno Fernandes. His lineage traces straight back to the founder of the global Gracie Barra organization, Master Carlos Gracie Jr.

Before committing fully to the martial arts, he earned a Bachelor's Degree in Civil Engineering and operated as a licensed professional engineer for 25 years. This technical background shapes his teaching methodology — breaking down complex grappling concepts into clear, logical progressions that work for both beginners and advanced practitioners.

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The Full Team

Every instructor at Gracie Barra Saint-Laurent trains under Professor Demetrios and follows the proven Gracie Barra curriculum. Our team covers all programs — from kids fundamentals to elite adult competition training.

Greg Lee BJJ instructor Gracie Barra Saint-Laurent Montreal
1st Degree Black Belt
Greg Lee
Instructor · Advanced Programs

An active competitive BJJ athlete, Greg brings real-world tournament strategy and modern training methodologies to our Montreal mats. He teaches our advanced and expert programs, blending positional drilling with high-level submission grappling tactics.

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Garen Cakmak BJJ instructor Gracie Barra Saint-Laurent Montreal
Black Belt
Garen Cakmak
Instructor · Advanced Programs

Deeply passionate about practical self-defense, Garen co-leads our advanced and expert programs alongside Greg. He guides experienced practitioners through submission grappling flows, timing refinement, and tournament-ready combat strategies.

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Frederic Blanquart BJJ instructor Gracie Barra Saint-Laurent Montreal
Brown Belt
Frederic Blanquart
Instructor · Beginners & Intermediate

Fred is highly regarded for his systematic approach to positional drilling and structural mechanics. He teaches both our beginner and intermediate programs, guiding students from their very first class through to confident, technical BJJ practitioners.

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Yanni Petsinis kids BJJ coach Gracie Barra Saint-Laurent Montreal
Blue Belt
Yanni Petsinis
Coach · Kids Programs

A BJJ gold medalist with a background in wrestling and MMA, Yanni brings competitive edge and real athletic depth to our kids programs. He specializes in kids competition training, preparing young athletes for the physical, technical, and mental demands of the tournament stage.

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Simone Therriault kids BJJ coach Gracie Barra Saint-Laurent Montreal
Blue Belt
Simone Therriault
Coach · Kids Programs

An IBJJF Open gold medalist and SAU champion with titles across Gi and No-Gi divisions, Simone leads structured and encouraging kids classes focused on foundational positioning, agility, and core values of teamwork and respect.

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Michael Antonecchia kids BJJ coach Gracie Barra Saint-Laurent Montreal
Blue Belt
Michael Antonecchia
Coach · Kids Programs

An active competitive athlete, Michael coaches kids across all experience levels with a patient, positive, and encouraging style. He excels at breaking down complex movements into engaging drills that build coordination, confidence, and mutual respect among young practitioners.

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Certified instruction. Proven curriculum. Real results.

Every instructor at Gracie Barra Saint-Laurent is certified under the global Gracie Barra organization — the world's largest BJJ network with over 1,000 schools worldwide. Our curriculum is proven, structured, and designed to produce real results at every level.

7 Certified instructors on staff
1,000+ Gracie Barra schools worldwide
Free Trial class, no commitment

Start Brazilian Jiu-Jitsu in Montreal With a free Trial Class

Train Brazilian Jiu-Jitsu in Montreal at Gracie Barra Saint-Laurent. Learn effective self-defense, improve your fitness, and build confidence in a structured, beginner-friendly program.

– Beginner-friendly Brazilian Jiu-Jitsu classes in Montreal
– Structured training with certified instructors
– Programs for kids, teens, and adults
– Free trial class available, limited spots each week

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