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

Blitzcrank

49.4%

Senna win rate vs Blitzcrank

Skill matchup — could go either way

1,430

Games Analyzed

49.4%

Senna WR

50.6%

Blitzcrank WR

-44

Avg Gold Diff @15

Power Spike Timeline

Senna Level 1

Blitzcrank Level 2

Blitzcrank Level 6

Blitzcrank Mobility Boots

Senna 1 item

Senna Infinite scaling

How to Play This Matchup

Survive to Scale

Blitzcrank will try to bully you early. Give up CS if needed Ã¢â‚¬â€ your job is to not die. Senna outscales hard after 2 items. Play for farm, not fights.

Mixed Resistances

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

Poke vs All-in

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

Range Advantage

Senna has range advantage. Blitzcrank 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

Blitzcrank Win Condition

One hook wins lane, Q+E+R burst combo, bush control

Recommended Items

Senna

Eclipse

Core

Build every game

Rapid Firecannon