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

Kassadin

Champion 2

Katarina

51.2%

Kassadin win rate vs Katarina

Skill matchup — could go either way

732

Games Analyzed

51.2%

Kassadin WR

48.8%

Katarina WR

+98

Avg Gold Diff @15

Power Spike Timeline

Katarina Level 3

Kassadin Level 6

Katarina Level 6

Katarina 1 item

Kassadin Level 11

Kassadin Level 16

How to Play This Matchup

Power Curve

Kassadin is strongest late game while Katarina peaks mid game. Play around your power window.

Mixed Resistances

Kassadin deals AP damage while Katarina deals Mixed. Build resistances accordingly Ã¢â‚¬â€ don't stack the wrong type.

Mirror Playstyle

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

Exploit Katarina's Weakness

Katarina's main weakness: Hard CC interrupts ult, losing lane, no resets. Play around this to maximize your advantage.

Kassadin Win Condition

Survive to 16, R spam becomes uncatchable assassin

Katarina Win Condition

Roam, get resets, snowball through kills

Recommended Items

Kassadin

Rod of Ages

Core

Build every game

Archangel's Staff

Core

Build every game

Rabadon's

Core

Build every game

Zhonya's Hourglass

Counter

Stasis to survive assassin burst

Katarina

Hextech Rocketbelt

Core

Build every game

Nashor's Tooth

Core

Build every game

Zhonya's

Core

Build every game

Mercury's Treads

Defensive

MR + tenacity vs Kassadin's AP damage and CC

Kassadin's Worst Matchups

Katarina's Worst Matchups

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