Thank you very much for posting it here Yohan.
Your Dota Buff profile is very diverse. It has all the skill brackets in it but mostly it is Very High Skill and your KDA and other stats are also very good.
There can be 2 scenarios.
1. All of your Very High Skill matches are your party matches.
2. All your VHS matches are solo but all other skill brackets matches are Party matches.
Considering 2nd option, I can presume your MMR will be around 4200-4300. But if we consider 1st option, then your MMR will be around 2800-3000.
Do let us know in same thread what MMR you get once you calibrate.