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

Illaoi

Champion 2

Vayne

45.8%

Illaoi win rate vs Vayne

Vayne has the edge

343

Games Analyzed

45.8%

Illaoi WR

54.2%

Vayne WR

-338

Avg Gold Diff @15

Power Spike Timeline

Illaoi Level 6

Vayne Level 6

Illaoi 1 item

Vayne BORK

Illaoi 2 items

Vayne 3 items

How to Play This Matchup

Power Curve

Illaoi is strongest mid game while Vayne peaks late 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 sustained style. The one with better execution and itemization wins. Focus on spacing and cooldown tracking.

Range Advantage

Vayne has range advantage. Illaoi should look for short trades when Vayne uses abilities on the wave. Freeze near your tower and wait for jungle help or an all-in window.

Exploit Illaoi's Weakness

Illaoi's main weakness: Dodging E, kiting, not fighting in her zone. Play around this to maximize your advantage.

Illaoi Win Condition

Land E, force fights in tentacle zones, R in 2v1s

Vayne Win Condition

Scale, shred tanks with W true damage, kite with R+Q

Recommended Items

Illaoi

Eclipse

Core

Build every game

Black Cleaver