League system is a ranking system that matches players of a similar skill level to play with and against each other. It comprises nine tiers which indicate the skill level of players. Players within each division are ranked using a system of points called League Points (LP).
Players can monitor their league standings in their profile.
A season lasts almost a year, but is divided into three splits lasting three months. Players earn points for the split by winning games, which credit towards rewards at the end of the split.
- +20 SP when playing primary and secondary role
- +25 SP when drafting Fill
- +30 SP when autofilled
Ranked victories in Twisted Treeline earn 10 SP.
- 150 SP - Unique Split Icon
- 250 SP - Split Ranked Regalia upgrade
- 500 SP - Split Emote that adjusts based on tier until locking in at end of split
Tiers and Divisions
Each tier from Iron to Diamond is divided into four divisions, depicted by astarting from IV (4 being the lowest) to I (1 being the highest). Each division features a base armor, which then gets upgraded based on splits, resulting in a lot of different combinations. The armors shown below are in order: division 4 base; division 3 split 1; division 2 split 2; division 1 split 3.
Master tier and higher do not have divisions, they are instead exclusively reliant on LP and the population of players within these rank tiers. Any ranked armor features are obtained by staying within these tiers for each split of the season.
Each tier from Bronze to Diamond is divided into five divisions, depicted by abetween V (5 being the lowest) and I (1 being the highest).
Under the profile banner there's a trim that highlights the tier a person was the previous season.
Players entering a new ranked ladder will be placed in a provisional period that determines their rank on through the end of the period. During this time, there is no loss of LP nor promotional series, and the player's rank is private.
Players earn League Points (LP) when they win ranked games and lose them when they lose ranked games. The amount earned or lost depends on the player's hidden Match Making Rating (MMR). The higher the MMR, the more LP earned per win and the less LP lost per loss.
League Points inactivity decay
Diamond and above are subject to LP decay. Diamond players lose 50 LP if they don't play ranked games after 28 days, which then repeats every 7 days until they play a ranked game.
Master and above tiers decay work differently with a game banking system. Playing games adds towards the player's "banked games", up to a maximum of 10 games. 1 game is removed from the bank per day, and when the bank reaches 0, the player loses 250 LP per day until they bank more games.
Falling at 0 LP due to decay will automatically demote the player.
- Inactive players cannot be seen by others in the ladder view.
- The LP decay does not affect MMR.
Division Promotion and Demotion
This information applies to all tiers that contain multiple divisions.
Players who reach 100 LP in their division automatically start a set of games called promotion series. When promoting within a tier, these games are a best of three; When promoting to a new tier, these games are a best of five. Winning the series will advance the player's division with LP reset to 0, while failing the promotion results in a setback of LP based on the net amount gained during the promotion. Leaving a match either during champion selection or during the game itself forfeits a loss in the promotion series.
- Match losses caused by server problems don't count for promotion series.
- Promo Helper: Failed promotions lower than Gold I grant a free win for the next time the player enters promotion. This does not apply in the case of forfeited series.
- Division promotions from Platinum onwards are time limited 28 days, tier promotions are instead limited 5 days (including promotion to Platinum).
In very rare occasions, players are promoted twice when they win a promotion series. This happens with players whose MMR is unusually high for their current division. For instance, the MMR of a Gold IV player who plays duo queue often with his friend in Platinum III might be unusually high because he's matched often against higher level players. As a result, his MMR can be 1 or 2 divisions higher than the average in his current division. Another reason for unusually high MMRs is queue dodging. Queue dodging carries a penalty of 3 LP for the first dodge of the day and 10 LP for further dodging.
Since Season 4 it is possible, however rare, to skip promotional series. This happens with players whose MMR is one tier higher than their current placement. For example, a Gold IV player whose MMR is Platinum IV or higher is instantly promoted upon reaching 100 LP. It is possible to skip both divisions and promotional series.
Players are demoted when they lose matches at 0 LP or through inactivity decay. Demoted players move to the next lower division and their LP is reset to 75. E.g.: When a Gold II player gets demoted he falls to Gold III and has 75 LP.
Players who promote to a higher division enter a demotion immunity period that lasts for several games. The purpose of the immunity period is to prevent players from being demoted due to bad luck. However, Masters players demote after playing at least 3 games and then losing with 0 LP.
Since Season 4 it is possible to be demoted from a tier. Players in the division IV of a tier whose MMR drops an entire tier are warned about possible demotion. For example, a player in Gold IV will receive a warning upon reaching Silver IV MMR.
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Master, Grandmaster, and Challenger tiers each comprise a single division of the most skilled and competitive League of Legends players. There is no LP limit, but players must overtake each other's counts to gain standing. Every 24 hours, players calculated within a percentile of the top players will be replaced in the appropriate tier.
If a player reaches Challenger tier in solo/duo queue, even if they don't have a ranked team, they are likely to be spotted and possibly recruited by a professional team.
Information about previous seasons
- In Season One and Season Two, the system used a single ladder with ranking determined by an Elo rating system.
- Season Three introduced the multiple-tier league system, with each tier having 5 divisions (except for Challenger).
- Season Four introduced the Master tier (with only one division).
- Season Nine introduced the Iron tier and the Grandmaster tier, as well as reducing the number of divisions from 5 to 4.
Season 3 FAQ
Season 4 FAQ
Season 9 Ask Riot
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