Our Instructors

Ezra Trotter

Ezra Trotter Professor
Black Belt

Ezra is a high level competitor with his roots in Australia, where he trained with Kit Dale and since moving to Europe continues under Andre Nunes (Gracie Barra). Besides being active in the competition scene (ao. bronze at the Worlds), Ezra likes teaching jiu-jitsu and helps people to improve their game by focusing on the concepts behind the techniques.
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Ying Hao Ma

Ying Hao Ma co-founder, assistent instructor
Purple Belt

Ying Hao is a purple belt under Andre Nunes, co-founder of Gracie Barra Groningen and in charge of the day to day operations. He trains as much as possible besides his work as entrepreneur and father of two. Whenever his schedule allows it he's travelling the world, training jiu jitsu and occasionally competes.
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Orlando Prins

Orlando Prins co-founder, assistent instructor
Purple Belt

Having trained several other martial arts disciplines Orlando one day chose to add jiujitsu to his arsenal and fell in love with the sport. He is one of the most active competitors of GBG, Orlando has won many medals all over the world. Some of his achievements include, winning the Abu Dhabi Trials, IBJJF medals in Nice, London, Paris and many more. Orlando is training full time and shifted his focus lately to MMA as well.
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Vincent Staal

Vincent Staal assistent instructor
Purple Belt

Vincent trains jiu jitsu relatively short but managed to gain a great level by training hard and consistent. He is a great example of being dedicated to maintaining a great shape by living the jiu jitsu lifestyle.
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Bram Welbroek

Bram Welbroek assistent instructor
Blue Belt

After years training high level Kendo and participating in many (inter)national tournaments Bram decided to give BJJ a try and never looked back. Bram is a very humble person and a patient and friendly instructor always willing to help and explain that detail once more.
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Colored belts

Karel Weima - View Results
Purple Belt
Otjep Pieterson - View Results
Purple Belt
Isai Mercera - View Results
Purple Belt
Florian Eichert - View Results
Blue Belt
Diego Ribas Gomes - View Results
Blue Belt
Richard Dijkstra
Blue Belt
Jeroen Tinge
Blue Belt
Robert-Jan Tinge
Blue Belt
Samir Iskandarani - View Results
Blue Belt
Jason Pahl
Blue Belt
Rob Jansma
Blue Belt
Alan Wening - View Results
Blue Belt
Bas Sligter - View Results
Blue Belt
Machiel Welbergen
Blue Belt
Leon Koens - View Results
Blue Belt
Charis Zimmerman
Blue Belt

Competition white belts

Robert Bos - View Results
White Belt
Barnabus Busa - View Results
White Belt
Barnabus Busa - View Results
White Belt
Iris van de Zaag - View Results
White Belt
Tanne Hopkes - View Results
White Belt
Guven Cam - View Results
White Belt
Jannes Weishaupt - View Results
White Belt
Marco Amendola - View Results
White Belt
Wiebe Koehoorn - View Results
White Belt
Burak Bayrak - View Results
White Belt
Arvid Jans - View Results
White Belt

News & Blog

Nov. 27, 2016Amsterdam Open 2016

20/11/2016 - Sporthal Karelrijk, Amstelveen

Today a big part of the Gracie Barra Groningen Jiu Jitsu team together with coach Ezra took the journey to Amsterdam. Everybody was motivated to show the ability to compete and gain experience. The Amsterdam Open began 11 o’clock, so the team arrived half an hour earlier for the first weigh ins. Everybody made weight so the competition could go on.

Oct. 15, 2016Flevo Open 2016

On Saturday, the 17th of September six of us competed at the Flevo Open. The tournament was held in the huge Topsporthal in Almere and with nearly 400 competitors this was one of the biggest tournament in The Netherlands. A great way to kick off the new competition season!

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