How are champion matchup win rates calculated?

Win rates are calculated from thousands of ranked games in Emerald+ elo on the current patch. Data is sourced from OP.GG and updated regularly.

What does a 55% win rate matchup mean?

A 55% win rate means Champion 1 wins 55 out of every 100 games against Champion 2 in ranked. Anything above 52% is considered a favorable matchup.

Do matchup win rates change every patch?

Yes. Champion buffs, nerfs, item changes, and meta shifts can all affect matchup win rates. Our data updates with each new patch.

Should I always pick the counter champion?

Not necessarily. Comfort and experience on a champion often matter more than counter-picking, especially below Diamond. A 2-3% win rate difference is easily overcome by champion mastery.

What rank is the matchup data from?

All matchup data is sourced from Emerald+ ranked games to ensure the data reflects skilled play. Lower elo matchups can differ significantly.

Patch 26.9 Data

Champion Matchups

Pick two champions and see who wins. Win rates, counters, and tips powered by live ranked data.

Champion 1

Dr. Mundo

Champion 2

Sion

53.0%

Dr. Mundo win rate vs Sion

Dr. Mundo has the edge

587

Games Analyzed

53.0%

Dr. Mundo WR

47.0%

Sion WR

+238

Avg Gold Diff @15

Power Spike Timeline

Dr. Mundo Level 6

Sion Level 6

Sion 1 item

Sion Infinite HP

Dr. Mundo 2 items

Dr. Mundo 3 items

How to Play This Matchup

Power Curve

Dr. Mundo is strongest late game while Sion peaks late game. Play around your power window.

Mixed Resistances

Dr. Mundo deals Mixed damage while Sion deals AD. Build resistances accordingly Ã¢â‚¬â€ don't stack the wrong type.

Mirror Playstyle

Both champions play a sustained style. The one with better execution and itemization wins. Focus on spacing and cooldown tracking.

Exploit Sion's Weakness

Sion's main weakness: Dodging Q, mobile champs, % HP damage. Play around this to maximize your advantage.

Dr. Mundo Win Condition

Unkillable frontline, passive blocks CC, R regen

Sion Win Condition

Infinite HP scaling, R engage, zombie passive

Recommended Items

Dr. Mundo

Heartsteel

Core

Build every game

Warmog's Armor

Core

Build every game

Spirit Visage

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Sion's AD damage

Bramble Vest

Counter

Grievous wounds + armor vs Sion's sustain/autos

Sion

Heartsteel

Core

Build every game

Titanic Hydra

Core

Build every game

Thornmail

Core

Build every game

Dr. Mundo's Worst Matchups

Sion's Worst Matchups

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