[{quoted}](name=Nerf Gromp,realm=NA,application-id=3ErqAdtq,discussion-id=sjvdfm1i,comment-id=0005000000000000,timestamp=2016-06-18T20:53:22.822+0000)
MMR is a system that puts me with people 2-3 tiers above what I am? I don't play ranked so I don't really know what all this is.
to boil it down... MMR stands for Match Making Rating, you get paired with others who have similar MMR. It increases and decreases depending on whether you win or lose. Every mode in the game has a different MMR which means you can have a stupidly high MMR in one mode (let's say ranked) but also incredibly low MMR in others (let's say normals). So when you go and play in a mode you rarely play you are going to have this huge gap in skills since you are now using the MMR of a mode you barely play which is going to pair you up with others that have similar MMR in that mode.
It's something i wish they would fix but then not all modes are similar so having a high MMR in the environment of SR might not translate well to ARAM or TT (which yes they do have their own MMR) so that makes it a bit more tricky to do.