I had similiar situation and after few games it was recalculated properly. Try to play more games or check if in your past games you were not given free MMR.
@Henry: its not this case because it says -24 but 51 has been deducted from his mmr pool, therefore it have symptoms of a bug which was fairly common after introduction of new battle pass.
No, not really. I had a match where i won as alchemist, it says +25 but i only get an additional 1 mmr.
51 is more than u can possibly get in any case (the limit used to be 49, now its 45, i believe).
it might be a case of delaying rating accounting - like, it didnt include one loss previously, due to some steam lagg. however, if u r sure that's not the case, then idk.
Будь ласка, увійдіть до системи для написання коментарів.
http://imgur.com/eGFfhEm
As you can see there, i won and lost 2 of my recent game.
My mmr was 2150 when i won as ursa and for some stupid reason i lost 51 mmr when i was playing ck. It cleary says -24 but why the f my mmr became 2099.
Ps : ik im just a 2k normal skill scrub rofl.