Every academy creates its own unique atmosphere. A great deal of this is based on the individual and collective calibre of its instructors. Learn about Defiant Jiu-Jitsu's instructors.

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Jiu-Jitsu Lineage

When it comes to Brazilian Jiu-Jitsu, instructor lineage matters. We're proud to be able to trace our line all the way back to the founders of the martial art.

Our students are given the option of registering with the IBJJF so their rank is recognised internationally, regardless of whether they wish to compete or not.


Our Lineage

  • Mitsuyo Maeda [Japan] (1878 - 1941)
    7th Degree Judo Black Belt
    ⬇️

  • Carlos Gracie [Brazil] (1902 - 1994)
    10th Degree BJJ Red Belt
    ⬇️

  • Carlos Gracie Jr. [Brazil] (1956 - )
    8th Degree BJJ Red/White Belt
    ⬇️

  • Ryan Gracie [Brazil] (1974 - 2007)
    4th Degree BJJ Black Belt
    ⬇️

  • Mario Sergio Yokoyama [Brazil] (1979 - )
    4th Degree BJJ Black Belt
    ⬇️

  • Stuart Marks [New Zealand]
    2nd Degree BJJ Black Belt

Professor Stuart Marks

IBJJF Black Belt (II)
RCpN, PG Cert Advanced Nursing (Mental Health)

Professor Marks is a 2nd Degree Black Belt under Professor Mario Yokoyama, the founder of the myBJJ Team. He has been doing Jiu-Jitsu for more than 20 years.

Prof Marks is the Head Instructor for myBJJ New Zealand. He runs a successful school in Nelson, New Zealand, and regularly travels to the myBJJ Headquarters in Australia to train with Prof. Yokoyama.

Prof Marks supervises the Defiant Jiu-Jitsu dojos and acts as a mentor for Coach David Scott.

Visit his website for more information:
🔗 myBJJ New Zealand

Coach David Scott

IBJJF Brown Belt (III), ITF Taekwon-Do Black Belt (II)
BA (History), BSc (Computer Science)

Coach David Scott is a 3rd Degree Brown Belt under Professor Stuart Marks. He has been doing Jiu-Jitsu for more than 12 years, most of them teaching.

A New Zealander by birth, he is currently resides in Mexico City where he teaches Jiu-JItsu out of two popular dojos.

Coach Scott's favourite aspect of Jiu-Jitsu is its defensive side, particularly how its efficiency and effectiveness has improved with the evolution towards modern Jiu-Jitsu.

When not teaching Jiu-Jitsu, Coach Scott can be found teaching advanced English and working on graphic design and web development projects.