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

Jarvan IV

Champion 2

Master Yi

49.2%

Jarvan IV win rate vs Master Yi

Skill matchup — could go either way

1,867

Games Analyzed

49.2%

Jarvan IV WR

50.8%

Master Yi WR

-66

Avg Gold Diff @15

Power Spike Timeline

Jarvan IV Level 2

Jarvan IV Level 6

Master Yi Level 6

Jarvan IV 1 item

Master Yi 2 items

Master Yi 3 items

How to Play This Matchup

Early Aggression

Jarvan IV needs to punish Master Yi before they scale. Zone them off CS levels 1-5 and look for solo kills before first back. If Master Yi 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 Jarvan IV's Weakness

Jarvan IV's main weakness: R traps allies too, falls off, squishy if damage build. Play around this to maximize your advantage.

Jarvan IV Win Condition

E+Q combo gank, R traps carries, flag aura

Master Yi Win Condition

Scale, Q resets in teamfights, R makes untargetable

Recommended Items

Jarvan IV

Eclipse

Core