Zemill
commented
6 months ago MMR is based on a combination of things. Looking at your latest games, it looks like you are not getting a lot of MMR per win. Which means your 5/4 stack MMR is so much higher than your opponents. Lucky you arnt actually losing MMR.
When games are first uploaded there is some uncertainty in the MMR values so the system swings you around a lot to get you to where it thinks you belong. So you have large positives and negatives at the beginning. Over time, it starts to stabailize and you will get less MMR on wins, and lose more MMR on loses. Looks like your MMR is pretty stable and unless you start losing a lot, is unlikely to significantly change.
The MMR system is not an infinitely scaling system. It isnt like ranked where you attempt to get as many points as you can.
I was searching your website Heros profile and I wondered why my ELO was so low considering I have one of the highest WR I have ever seen. I am not sure how it works with your profile probably, but I noticed that games that I am certainly winning are getting marked as "False" in the winner column. I'm currently on a 20 game win streak and it says that I actually lost three of those games. Just wondering what that is all about. My user profile name for HOTS is elzar#1350. Thanks for your concern.