Defense Course

This course will provide you the knowledge to defend yourself against the highest percentage submissions and positions in grappling and BJJ. You will be more confident both in training and on the competition mats. 
The techniques and concepts of this course have been tested against elite athletes from all over the World.

5 Classes
October 6th - November 3rd
Every Thursday from 19:15 to 20:15
at unity99

Who is this for

This course is for everyone that wants to be able to defend against the strongest submissions and positions in Brazilian Jiu Jitsu.

We do recommend that you only register for this course if you have at least 6 months of experience with grappling or Brazilian jiu jitsu.

This is what you will learn:
– The concepts behind a great defense
– Turning defense into offense
– Early and late stage escapes for the strongest submissions

After following this course and applying its lessons, you will understand all the main submission threats, and more importantly, you will know how to defend and escape them. That way you can practice jiu jitsu with more confidence, both in training and in competitions.

Checkmat BJJ Rotterdam class group
BJJ competition class rotterdam

The course

The course is made up of 5 classes, each teaching you new concepts, defenses and escapes.

1. Back mount
2. Armbars and triangles
3. Guillotines and kimuras (if you like to wrestle or wrestle up, these are essential)
4. Leg locks
5. Turtle

Small Group
The classes are taught in a small group, there are only 10 available spots for this course. That means a lot of individual attention.

WhatsApp Group
You will be added to the WhatsApp group where you will receive bonus material and have the chance to ask further questions.

The course is taught by black belt instructor Daniel de Groot.

Daniel has used the concepts and techniques in this course to compete at the highest level, medalling at both ADCC trials and Braziian Nogi Championships as a black belt.

Time, Location & Price

Classes are held every Thursday from 19:15 to 20:15 in the upstairs dojo at Unity99.

Previously, the content of this course was only available through private classes with Daniel de Groot, it would cost you over 300 euros to learn what is taught in this course.

This course is available for a fraction of that.

The price for this 5 week course is 85 euros. CheckMat Rotterdam members pay 70 euros. After your registration you will receive a payment request. Your registration is not final until this is paid.

No gi grappling rotterdam checkmat

What should i Bring

All you need to join this course are:
– Nogi gear
– Flipflops for when you are not on the mats

Some extra things you can bring:
– A towel to shower afterwards
– A notebook
– A bottle of water 


Click here to fill in the form to register for this course.

After filling in the form we will contact you to confirm your reservation.
This is also your opportunity to ask any questions that have not been answered on this page.


Unity99 is located in Zevenkamp and is easily accessible by car and public transport. There is free parking available. 

This course will be taught in the private dojo. When you enter the Crossfit area of the gym, immediately go up the stairs on your left.