Diamond+
LoL Decay Calculator
Free ranked decay calculator for Diamond, Master, and Challenger.
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Results appear here when you search or pick a saved account.
How decay is calculated
Diamond: 28 initial days, +7 per game, max 28, −50 LP/day.
Master+: 14 initial days, +1 per game, max 14, −75 LP/day.
Based on your latest ~20 ranked solo games (queue 420).
Refresh syncs rank, Riot ID, and match history from Riot.