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

Irelia

Champion 2

Olaf

49.5%

Irelia win rate vs Olaf

Skill matchup — could go either way

281

Games Analyzed

49.5%

Irelia WR

50.5%

Olaf WR

-42

Avg Gold Diff @15

Power Spike Timeline

Olaf Level 1

Irelia Level 2

Irelia Level 5

Olaf Level 6

Irelia BORK

Olaf 1 item

How to Play This Matchup

Power Curve

Irelia is strongest early game while Olaf peaks early game. Play around your power window.

Armor Rush

Both champions deal physical damage. Whoever builds armor first (Plated Steelcaps, Bramble Vest) gets a huge advantage in trades.

Mirror Playstyle

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

Exploit Irelia's Weakness

Irelia's main weakness: Hard CC, not hitting E, falling behind. Play around this to maximize your advantage.

Irelia Win Condition

Stack passive on minions, all-in with 4 stacks

Olaf Win Condition

Run people down with R CC immune, lifesteal at low HP

Recommended Items

Irelia

Blade of the Ruined King

Core

Build every game

Trinity Force

Core

Build every game

Wit's End

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Olaf's AD damage

Olaf

Goredrinker

Core

Build every game

Black Cleaver

Core

Build every game

Death's Dance

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Irelia's AD damage

Irelia's Worst Matchups

Olaf's Worst Matchups

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