Leg lock course

This course will provide you the knowledge to attack and defend leg locks at the highest level. 
You will not only have more success during training, but also during competitions.
The techniques and concepts of this course have been tested against elite athletes from all over the World.

5 Classes
March 31st - April 28th*
Every Thursday from 19:15 to 20:15
at unity99

Who is this for

This course is for everyone that wants to develop a deep understanding of the leg lock game. 

We do recommend that you only register for this course if you have at least 3 months of experience with grappling or Brazilian jiu jitsu. Any previous knowledge about leg locks is not necessary

This is what you will learn:

– The main leg locking positions used in modern grappling
– How to finish inside & outside heel hooks
Defending and escaping all the major positions
Entering leg locks from top and bottom

After following this course and applying it’s lessons, you will understand all the main positions and you will have increased success in training and in competition.

BJJ competition class rotterdam

The course

The course is made up of 5 classes, each teaching you new positions and concepts:

1. Intro & outside heel hooks
2. Cross ashi (honey hole)
3. 50/50
4. Defending & countering outside heel hooks
5. Defending & countering inside heel hooks

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 win several NAGA and Grappling Industries elite divisions and to reach the semi-finals of the ADCC trials. 

His students have used this knowledge to win superfights, Grappling Industries titles and even the ADCC Poland Pro divison.

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 only 1/4 of that. 

The price for this 5 week course is 75 euros. CheckMat Rotterdam members pay 60 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’re 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.