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

Senna

Champion 2

Zeri

50.6%

Senna win rate vs Zeri

Skill matchup — could go either way

716

Games Analyzed

50.6%

Senna WR

49.4%

Zeri WR

+44

Avg Gold Diff @15

Power Spike Timeline

Senna Level 1

Zeri Level 6

Senna 1 item

Senna Infinite scaling

Zeri 2 items

Zeri 3 items

How to Play This Matchup

Power Curve

Senna is strongest late game while Zeri peaks late game. Play around your power window.

Armor Rush

Both champions deal physical damage. Whoever builds armor first (Plated Steelcaps, Bramble Vest) gets a huge advantage in trades.

Exploit Zeri's Weakness

Zeri's main weakness: Short range Q, weak early, needs R stacks. Play around this to maximize your advantage.

Senna Win Condition

Stack souls for infinite range/crit, global R heal/damage

Zeri Win Condition

R speed stacking, kite forever, scale into hypercarry

Recommended Items

Senna

Eclipse

Core

Build every game

Rapid Firecannon

Core

Build every game

Infinity Edge

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Zeri's AD damage

Bramble Vest

Counter

Grievous wounds + armor vs Zeri's sustain/autos

Zeri

Trinity Force

Core

Build every game

Runaan's Hurricane

Core

Build every game

Infinity Edge

Core

Build every game

Plated Steelcaps

Defensive

Armor boots vs Senna's AD damage

Bramble Vest

Counter

Grievous wounds + armor vs Senna's sustain/autos

Zeri's Worst Matchups

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