01 PM | 03 nov

3 December Masterclass BJJ competition mindset / Gi & No-Gi – Daniel de Groot & Maarten Bauwens

BJJ Masterclass Mindset Competition Daniel de Groot & Maarten Bauwens

Openmat – Mentality& Mindset – Strategy – Q & A

We are introducing a new concept on BJJNinja`s. On a more regular base we will be organising masterclasses BJJ (Gi and No-Gi). These are 1 day events with Pro competitors, instructors who belong to the best in the field in Europe.

On December thirrd 2022 we will have our first edition in Belgium (Sportcentrum De Witte Molen Azalealaan 29, 9100 Sint-Niklaas).) in partnership with Daniel de Groot and Maarten Bauwens. Their will be short sessions in Both Gi & No-Gi.  The set-up for the day is, Gi session bye Maarten Bauwens and No-Gi sessions by Daniel de Groot.

There will be time to roll during the openmat, and ofcourse lots of sparring. But also the chance to meet new people, and a lot of oppurtunities to exchange experiences with eachother and to better your competiton game in the Gi and No-Gi.

Maarten Bauwens

In 2015 behaalde Maarten Bauwens aan de Gentse Universiteit de titel van Master of Science in de lichamelijke opvoeding en bewegingswetenschappen.[1] In april 2017 behaalde hij in Abu Dhabi de wereltitel jiujitsu in de gewichtsklasse tot 85 kg[2] en werd hij vice-Europees kampioen in Lissabon.[3][4]

Op 23 februari 2019 werd hij in Malaga Europees kampioen, eveneens in de gewichtsklasse tot 85 kg. Daar viel hij op door tijdens de podiumceremonie niet zoals gebruikelijk de Belgische driekleur maar wel de Vlaamse leeuwevlag te ontvouwen.[5][6] Met zijn lange baard en agressieve gevechtsstijl profileert hij zich ook op sociale media graag als de “Flemish Lion”.[7]

Hij is woonachtig in Temse. bron wikipedia

Daniel de Groot

As a competitor I’ve travelled the world to compete. I’ve made a name for myself in the European and Brazilian circuits. In 2021 I received my black belt. I love competing, not just for the rush or for the feeling of winning, but also to test the techniques I teach. There are plenty coaches that tell you to do things they haven’t applied in high-level competition. I don’t want to be one of them. I want to show only techniques I am 100% sure will work, even against tough resistance. 

My main accomplishments are winning the IBJJF nogi European and nogi Brazilian championships. That makes me the only Dutchman to ever win the Brazilian championships. With the gi I’ve medalled at the IBJJF Europeans and I’ve won the IBJJF Curitiba Open. In submission grappling I’ve won the elite categories of NAGA and Grappling Industries.

visit his website


Maarten Bauwens

  • 09u00-09u45: technical seminar gi
  • 09u45-10u15: tactical seminar gi
  • 10u15-10u45: competition sparring gi

 BREAK 30min 10u45-11u15

 Daniël De Groot

  • 11u15-12u00: technical seminar nogi
  • 12u00-12u30: tactical seminar nogi
  • 12u30-13u00: competition sparring nogi


Location Sportcentrum De Witte Molen (Azalealaan 29, 9100 Sint-Niklaas).

07 PM | 14 jan

No Gi trainingday 23 February Dijkmansport Groningen with Daniel de Groot, Johan Wannemaeker,  Soroush Ghergi

23 February trainingday No Gi 

Daniel de Groot, Johan Wannemaeker,  Soroush Ghergi




Basic wrestling techniques for BJJ, cool competition techniques for your No Gi game and more…

Our next BJJNinja`s event  is  a No Gi trainingday on 23 February 2020. We have some great instructors who will be teaching and sharing some of their knowledge and experience. 


Daniel will be teaching some of his favorite techniques he likes to use in competitions, Soroush is a very experienced wrestler who will be teaching some basic wrestlign skills you can use inyour No Gi game. Johan will be teaching some cool Kimura traps and set ups standing as well as on the ground.


We also got a healthy lunch included half way the day, and ofcourse all sessions will be filmed and uploaded afterwards on our facebook group.  So what are you waiting ro join up!


  1. Daniel De Groot


  3. Soroush Ghergu


€27.50 early bird till January 31st.

Dijkmansport Melisseweg 83, 9731 BM Groningen

If you have any questions, you can e-mail us at info@bjjninjas.nl

12 PM | 10 dec

12 January Trainingday / Co-Event with “The Mattekloppers” “Judo for BJJ & BJJ for Judo”

Trainingsday ACLO with The Mattekloppers


Judo for BJJ & BJJ for Judo “

On January 12th BJJNInja`s & Mattenkloppers co-host an entire trainingday at the ACLO. During this day we will explore numerous standing and various ground situations which apply both in Judo & BJJ. During 3 seminars,  instructors Henk Heneweer (Team Kaishin) and Martijn Dijkman (Dijkmansport) will teach you various techniques which will help you further develop your game within BJJ & Judo.

There will be time to roll, but also lot of oppurtunities to exchange experiences between judo & BJJ, and where we can learn from eachother. 


Instructors for this event

Martijn Dijkman is oprichter en eigenaar van Dijkmansport en Judo centrum Dijkmansport Groningen. Martijn is een zeer ervaren Judo leraar met meer dan 20 jaar ervaring op hoog wedstrijd niveau voor zowel jeugd als ook volwassenen. Tot eind jaren 90 zat Martijn bij de Nederlandse selectie en behaalde in 1997 een 3e plaats op de Nederlandse Kampioenschappen in de categorie tot 78 kg.

Martijn heeft een 2e dan en is een fantastische instructeur om les van te krijgen. Ook vandaag de dag geeft Martijn nog dagelijks judolessen aan jong en oud.

I have more then 12 years of experience teaching and training people and athletes in various Martial Arts, like Brazilian Jiu-Jitsu, Grappling, MMA, Kickboxing and Karate.

I have been training people and diverse athletes Strenght- and onditioningtraining to help them achieving their goals in sports and in life. I also give personal training in Brazilian Jiu-Jitsu and strenght- and conditioningtraining.

I’m also a Brazilian Jiu-Jitsu athlete who still likes to compete. I achieved many podium places through the National- and International tournaments for the last 11 years that I’ve been competing in Brazilian Jiu-Jitsu and Grappling Tournaments.

Sponsors for this event:

  • updated a.s.a.p.

INCLUDED & NOT INCLUDED for this event

Included for this event:

  • FREE T-shirt WORTH €15,-
  • openmat sessions at ACLO.


  • Their is free parking behind the ACLO


€25 and free T-Shirt 

10:00 – 11:30 BJJ (Henk Heneweer)

11:30 – 12:30 Openmat and lunch

12;30 – 14:30 JUDO Basics (Grips, Throws, Tachi-Waza, Ne-Waza)

14:30 – 15:00 Rest and Rolling if you want

15:00 – 16:30 BJJ (HenkHeneweer)


  • ACLO Sportcentre / Blauwborgje 16 – 9747 AC Groningen 

If you have any questions, you can e-mail us at info@bjjninjas.nl