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

Rengar

50.7%

Jarvan IV win rate vs Rengar

Skill matchup — could go either way

1,044

Games Analyzed

50.7%

Jarvan IV WR

49.3%

Rengar WR

+53

Avg Gold Diff @15

Power Spike Timeline

Jarvan IV Level 2

Rengar Level 3

Jarvan IV Level 6

Rengar Level 6

Jarvan IV 1 item

Rengar 1 item

How to Play This Matchup

Power Curve

Jarvan IV is strongest early game while Rengar peaks mid 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.

Exploit Rengar's Weakness

Rengar's main weakness: No bushes = weak, CC, grouped enemies, pink wards. Play around this to maximize your advantage.

Jarvan IV Win Condition

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

Rengar Win Condition

Bush leap combos, R stealth assassinate, snowball kills

Recommended Items

Jarvan IV

Eclipse

Core

Build every game

Black Cleaver

Core

Build every game

Sterak's Gage

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Rengar's AD damage

Death's Dance

Defensive

Bleed passive reduces burst, heal on takedown

Rengar

Eclipse

Core

Build every game

Youmuu's Ghostblade

Core

Build every game

Edge of Night

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Jarvan IV's AD damage

Jarvan IV's Worst Matchups

Rengar's Worst Matchups

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