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

Sion

51.7%

Irelia win rate vs Sion

Skill matchup — could go either way

634

Games Analyzed

51.7%

Irelia WR

48.3%

Sion WR

+139

Avg Gold Diff @15

Power Spike Timeline

Irelia Level 2

Irelia Level 5

Sion Level 6

Irelia BORK

Sion 1 item

Sion Infinite HP

How to Play This Matchup

Early Aggression

Irelia needs to punish Sion before they scale. Zone them off CS levels 1-5 and look for solo kills before first back. If Sion reaches 2 items even, you're in trouble.

Armor Rush

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

Exploit Sion's Weakness

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

Irelia Win Condition

Stack passive on minions, all-in with 4 stacks

Sion Win Condition

Infinite HP scaling, R engage, zombie passive

Recommended Items

Irelia