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

Sivir

Champion 2

Kog'Maw

46.9%

Sivir win rate vs Kog'Maw

Kog'Maw has the edge

143

Games Analyzed

46.9%

Sivir WR

53.1%

Kog'Maw WR

-251

Avg Gold Diff @15

Power Spike Timeline

Sivir Level 6

Kog'Maw Level 6

Sivir 2 items

Kog'Maw 2 items

Sivir 3 items

Kog'Maw 3 items

How to Play This Matchup

Power Curve

Sivir is strongest late game while Kog'Maw peaks late game. Play around your power window.

Mixed Resistances

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

Mirror Playstyle

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

Exploit Sivir's Weakness

Sivir's main weakness: Short range, weak early, needs items. Play around this to maximize your advantage.

Sivir Win Condition

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

Kog'Maw Win Condition

W range + % HP shred, melt tanks, needs peel

Recommended Items

Sivir

Infinity Edge

Core

Build every game

Navori Quickblades

Core

Build every game

Lord Dominik's

Core

Build every game

Kog'Maw

Guinsoo's Rageblade

Core

Build every game

Blade of the Ruined King

Core

Build every game

Runaan's Hurricane

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's Worst Matchups

Kog'Maw's Worst Matchups

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