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Champion Mastery is a progression system which tracks a player's aptitude and experience with each champion. At the end of every game, players receive a grade which scores their performance in comparison to the whole player base in that respective champion and position combination. These grades then translate into a point score which accumulates over time, eventually unlocking new Champion Mastery levels and rewards as the player advances through the system.
Riot's official support page on Champion Mastery can be found here.
How the System Works
All summoners who've hit level five or higher will be eligible for Mastery points. Upon release in patch V5.8, this feature supported only PvP Summoner's Rift games (Blind Pick, Draft, Ranked). As of patch V6.12 the system now supports all player versus player games, such as ARAM and Twisted Treeline, including special game modes such as Ascension, Legend of the Poro King, Ultra Rapid Fire, Hexakill, and One for All. All Co-op vs. AI modes and custom games still do not allow players to earn Mastery points.
Every game you play with a champion, you will earn a grade based on how well you performed in comparison to all other players in your region that have played your champion-position combination (e.g., Vel'Koz bottom lane will only be compared to other Vel'Koz bottom lane players), with S+ only being awarded to the highest percentile of players. These grades are not persistent and only represent how well you performed in that specific game. Once a player leaves the post-game screen, that grade can no longer be accessed. However, a higher grade is worth more points towards your mastery of that particular champion.
- While you are graded versus all players in your region, the grading system is not influenced by your matchmaking rating (MMR). There is nothing to stop a Silver 2 from being the best Lissandra player in the region, should they consistently score S+ for their games.
- Performance uses a mix of core game metrics that Riot is confident cannot be abused through means such as AFK farming or spam warding.
- Riot will not reveal the exact factors that determine grading to prevent players from attempting to game the system.
Champion Mastery is currently divided into 7 levels, with level 7 being the highest. To progress through the levels, a player need to play games on your champion and earn champion points (CP). The amount of mastery points earned is displayed as a circular progress bar around your grade in the post-game screen. While a higher grade is worth more mastery points, the amount of mastery points gained is also influenced by team performance and party size (premade bonus).
Team performance is affected by whether or not your team wins.
Premade bonus is awarded based on group size:
|Premade Size||Premade Bonus|
|Party of one||No bonus|
|Party of two||2% of CP earned|
|Party of three||4% of CP earned|
|Party of four||6% of CP earned|
|Party of five||10% of CP earned|
Players can track their progress with each champion outside the post-game screen in the Champion section of their profile. Furthermore, the three champions with the highest point score are displayed prominently on the profile landing page, next to your ranked standings.
Unplayed champions are considered level 0. After playing a single game, players immediately enter level 1 and start their progress towards level 2.
Mastery points can be earned beyond level 5. The total is displayed below the champion portrait on the profile screen together with the level 5-7 crest.
The following describes the amount of Champion Mastery points required to go from one level to the next:
|Level||CP Required||Cumulative CP Required||Cumulative CP %|
Levels 6 and 7
Upon reaching level 5 with a champion, that champion becomes eligible to earn Mastery tokens. These tokens can only be earned on Summoner's Rift normal and ranked games. Receiving a grade of S- or higher at level 5 earns a Mastery 6 Token, and receiving a grade of S or S+ at level 6 earns a Mastery 7 Token. Leveling up a champion requires combining the following:
In both instances, the blue essence can be replaced with a champion shard or champion permanent of that champion.
There are 7 levels of Champion Mastery currently obtainable. You will earn the crests below as you accumulate Champion Mastery points. In additions, levels 4 and up get access to an in-game Mastery badge emote, a loading screen border (visible to allies only), and an in-game announcement banner.
At each rank, there is also a role-specific title which can be seen on your profile. Below are the titles at each rank for a given role.
- Free to play champions can be leveled up to level 4. After that, they will stop accruing points until the champion is unlocked.
- Mastery points do not decay.
- Progress will not be reset in the event of a champion rework.
- Visibility of Champion Mastery to other players:
Taken from the introduction page. Outdated information is noted in italics.