I'm not a fan of this "MMR" thing
I carried myself from S5 to S2 this week so far, and every time I look up my stats on that op.gg site, I see "Ur MMR is really low!!! >:( I'm gonna punish you a whole bunch for every game you lose and give you very little for every game you win! Haha!!"
Good thing I have an 80% winrate, but damn