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

Cassiopeia

44.9%

Kassadin win rate vs Cassiopeia

Cassiopeia hard counters Kassadin

127

Games Analyzed

44.9%

Kassadin WR

55.1%

Cassiopeia WR

-409

Avg Gold Diff @15

Power Spike Timeline

Cassiopeia Level 2

Kassadin Level 6

Cassiopeia Level 6

Kassadin Level 11

Kassadin Level 16

Cassiopeia 2 items

How to Play This Matchup

Power Curve

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

MR Priority

Both deal magic damage. An early Null-Magic Mantle or Mercury's Treads can swing the lane. Hexdrinker is also an option for AD champs.

Hit and Run

Kassadin needs to combo and back off. Don't stay in extended trades against Cassiopeia's sustained damage. Short trades, then disengage.

Range Advantage

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

Exploit Kassadin's Weakness

Kassadin's main weakness: Early game extremely weak, AD matchups, CC. Play around this to maximize your advantage.

Kassadin Win Condition

Survive to 16, R spam becomes uncatchable assassin

Cassiopeia Win Condition

E spam DPS, R stun if facing, no boots = more AP

Recommended Items

Kassadin

Rod of Ages

Core

Build every game

Archangel's Staff