Sightburner (EUNE)
: > _It’s based on the champion and role that you just played in a game. So, for example, we look at Annie mid differently to Annie support. We take a series of performance metrics **and compare how you do to all other players in your region in your champion / position combination**. It is percentile driven - so earning a high score means you performed in the top x% of players on that champ in that position. The grade itself governs the point gains._ - http://eune.leagueoflegends.com/en/page/features/champion-mastery TLDR; You are compared against other Jhins it is not just your score that decide what grade you will get.
And the nr 1 from x% top had a 99 / 2 / 427 with 2000 creeps ?
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Co3ra996

Level 33 (EUNE)
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