i'm just curious for no reason; how are they calculated. It's obvious that it depends on farm, kill participation, ka/d ratio and if you won the game, but what exactly is the formula? Or is it hidden for the same reason as MMR?
Riot has never disclosed that information to avoid having people try to play around mastery rather than just playing the game normally.
it's based on the grade, the exact formula is unknown.
Thank you
It's statistics based but also player based and MMR based - basically, the better you do compared to similar players, the better your grade on a champ will be (thus the better your mastery).
