What is this rating system

Anstoro·7/22/2016, 1:37:20 AM·1 votes·444 views
League of Legends Match History

Granted yes this is a 3v3 but that should not affect the fact that I went 15/0 Jhin and got an A+ like what is this

1 Comments

Eshir7/22/2016, 1:53:13 AM1 votes

Its based on averages in your region and possibly rank (bronze - challenger and unranked) so on average x ammount of players did better in TT with Jhin so get get an S grade one would have to do quite better than average as far as i know