MMR Checker · All regions · Patch 16.13
What Is My MMR?
MMR (Matchmaking Rating) is the hidden number League of Legends uses to build your matches and set your LP gains. Riot never displays it, but it can be estimated reliably from your visible rank, your LP and your win rate. Enter your Riot ID below: the checker returns your estimated MMR, the equivalent tier, and your predicted LP gains per win and loss.
No account connection, no password: public Riot API data only.
How the estimate is calculated
The checker starts from your displayed rank: each tier maps to an MMR band (table below), and your division plus LP pin your position inside that band. Your season win rate then adjusts the estimate: a win rate consistently above 50% signals an MMR above your rank, and vice versa. Finally, the gap between the two drives the LP prediction — the same mechanism Riot uses internally, applied in reverse. Every formula is published on the methodology page.
MMR bands per tier (Season 2026)
| Tier | MMR min | MMR max |
|---|---|---|
| Iron | 600 | 900 |
| Bronze | 900 | 1200 |
| Silver | 1200 | 1500 |
| Gold | 1500 | 1800 |
| Platinum | 1800 | 2100 |
| Emerald | 2100 | 2300 |
| Diamond | 2300 | 2600 |
| Master | 2600 | 2800 |
| Grandmaster | 2800 | 3000 |
| Challenger | 3000 | 3400 |
Riot recalibrates these bands every season; this site re-verifies them automatically with every patch (currently 16.13).
MMR, rank and LP: the triangle that decides your climb
Your rank is a cosmetic badge that moves with LP; your MMR is the real rating that decides who you face and how much LP every game is worth. When MMR runs ahead of rank, the system accelerates your climb (+22 to +28 LP per win). When it lags behind, it slows you down. Understanding that gap is understanding why you're climbing, stuck or sinking — and that gap is exactly what this tool measures. To go deeper, read our full MMR guide and the methods that actually raise it.
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Frequently asked questions
How do I check my MMR in LoL?
Riot never publishes MMR. It can be estimated from three public signals: your visible rank (tier, division, LP), your season win rate, and your LP gains per game. Our checker combines these signals into an estimate with its error margin — no login, no account access, just your Riot ID.
What is a good MMR?
Rough Season 2026 bands: Iron 600-900, Bronze 900-1200, Silver 1200-1500, Gold 1500-1800, Platinum 1800-2100, Emerald 2100-2300, Diamond 2300-2600, Master and above 2600+. The median player sits around 1400-1500 (high Silver / low Gold).
Why do I lose more LP than I gain?
Because your MMR is below your displayed rank. The system gives you small gains (+14 to +17 LP) and heavy losses (-22 to -25 LP) to pull your rank back down to your MMR. The only way out: sustain a 55%+ win rate over 20-30 games.
Can I reset my MMR?
No. Riot offers no reset button and server transfers no longer reset MMR. The only partial reset happens at the start of each season, roughly (MMR + 1200) / 2. Winning more than you lose remains the only real fix.
Do ARAM and normals have their own MMR?
Yes. Every queue has an independent MMR: your ARAM MMR can be Platinum-level while your solo/duo sits in Gold. That's why ARAM games sometimes feel harder than your ranked matches. Our checker shows one estimate per ranked queue.