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

Amumu

48.1%

Senna win rate vs Amumu

Skill matchup — could go either way

104

Games Analyzed

48.1%

Senna WR

51.9%

Amumu WR

-153

Avg Gold Diff @15

Power Spike Timeline

Senna Level 1

Amumu Level 3

Amumu Level 6

Senna 1 item

Amumu 1 item

Senna Infinite scaling

How to Play This Matchup

Power Curve

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

Mixed Resistances

Senna deals AD damage while Amumu deals AP. Build resistances accordingly Ã¢â‚¬â€ don't stack the wrong type.

Poke vs All-in

Senna wants to whittle Amumu down from range. Amumu needs to find a gap close and commit hard. If Amumu can't reach Senna, they lose. If they get on top, Senna is dead.

Range Advantage

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

Exploit Senna's Weakness

Senna's main weakness: All-in, short range early, squishy. Play around this to maximize your advantage.

Senna Win Condition

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

Amumu Win Condition

Double Q engage, R AoE stun wins teamfights

Recommended Items

Senna