Season 4 mmr rating

Hey, so currently i have a little problem, just a mistake on my profile that I want to fix, so last season (S4) I ended champ 3 with an mmr of 1315, but then the next day I went to my profile and it says that my mmr in S4 was 1223 instead of 1315, also an another feature u guys could add is to put the mmr of each game mode and stuff and put the peak mmr next to it.

Many thanks, volensy.