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

Kog'Maw

Champion 2

Sivir

55.4%

Kog'Maw win rate vs Sivir

Kog'Maw hard counters Sivir

159

Games Analyzed

55.4%

Kog'Maw WR

44.6%

Sivir WR

+428

Avg Gold Diff @15

Power Spike Timeline

Kog'Maw Level 6

Sivir Level 6

Kog'Maw 2 items

Sivir 2 items

Kog'Maw 3 items

Sivir 3 items

How to Play This Matchup

Power Curve

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

Mixed Resistances

Kog'Maw deals Mixed damage while Sivir deals AD. 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.

Kog'Maw Win Condition

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

Sivir Win Condition

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

Recommended Items

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

Infinity Edge

Core

Build every game

Navori Quickblades

Core

Build every game

Lord Dominik's

Core

Build every game

Kog'Maw's Worst Matchups

Sivir's Worst Matchups

Need a fresh account to practice matchups?

Browse LoL Smurfs