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

Sivir

49.4%

Kai'Sa win rate vs Sivir

Skill matchup — could go either way

1,611

Games Analyzed

49.4%

Kai'Sa WR

50.6%

Sivir WR

-47

Avg Gold Diff @15

Power Spike Timeline

Kai'Sa Level 6

Sivir Level 6

Kai'Sa Q evolve

Kai'Sa 2 items

Sivir 2 items

Sivir 3 items

How to Play This Matchup

Power Curve

Kai'Sa is strongest mid game while Sivir peaks late game. Play around your power window.

Mixed Resistances

Kai'Sa deals Mixed damage while Sivir deals AD. Build resistances accordingly Ã¢â‚¬â€ don't stack the wrong type.

Hit and Run

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

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

Sivir Win Condition

W ricochet teamfight DPS, E spell shield, R team speed

Recommended Items

Kai'Sa

Kraken Slayer

Core

Build every game

Nashor's Tooth

Core

Build every game

Rabadon's

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Sivir's AD damage

Bramble Vest

Counter

Grievous wounds + armor vs Sivir's sustain/autos

Sivir

Infinity Edge

Core

Build every game

Navori Quickblades

Core

Build every game

Lord Dominik's

Core

Build every game

Kai'Sa's Worst Matchups

Sivir's Worst Matchups

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