Normal MMR is used to match you up against players for Normal Queues (Blind, Draft, TB). It is calculated based on your W/L in those normal queues. It is also slightly affected by your ranked MMR.
Is there a normal MMR?
Fun fact, normal games have a Hidden MMR system so you can still get placed with similar skill people if you play it enough.
Can you check normal MMR in League of Legends?
You can easily check your win/loss ratio. After the game is over, there will be one gold number on the middle left and a gray number on the middle right.
Does ranked MMR affect normal?
1 Answer. No. Ranked MMR and normal MMR are definitely not synchronized. You can see it when mostly any LoL pro (or anyone who improved in rankeds since last normal game) plays normals - they stomp hard, because their normal MMR is much lower than their more accurate assessment of their skill - their ranked MMR.
Can I reset my MMR in LoL?
If you wait one whole year without playing rank, you can supposedly reset your MMR. Other options are just play Flex. Or fix your MMR by just winning a lot and dodging in your promos.