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

Kai'Sa

Champion 2

Katarina

39.8%

Kai'Sa win rate vs Katarina

Katarina hard counters Kai'Sa

239

Games Analyzed

39.8%

Kai'Sa WR

60.2%

Katarina WR

-820

Avg Gold Diff @15

Power Spike Timeline

Katarina Level 3

Kai'Sa Level 6

Katarina Level 6

Katarina 1 item

Kai'Sa Q evolve

Kai'Sa 2 items

How to Play This Matchup

Mid-Game Showdown

Both champions spike around the same time. The player who gets their first item faster wins. Focus on CS leads and smart trades to build an advantage before the mid-game.

Mirror Playstyle

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

Range Advantage

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

Exploit Kai'Sa's Weakness

Kai'Sa's main weakness: Short range, weak early, needs evolves to function. Play around this to maximize your advantage.

Kai'Sa Win Condition

Evolve abilities, R into backline or R for safety, hybrid damage

Katarina Win Condition

Roam, get resets, snowball through kills