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This will vary because unlike other stat sites we include 100% of a brackets champions played and never include champions that don't belong in the bracket.
Emerald+ Champions Analysed: 8,871,545
We include 100% of the champions played of every selected tier bracket in our analysis, we never include champions from outside the tier quoted tier.
Senna Counters
Senna bottom vs bottom Counters
Senna bottom on Patch 15.11 is the strongest counter to bottom champions of Kalista, Samira & Yasuo. While Senna bottom is countered most by bottom champions of Cassiopeia, Syndra & Aurelion Sol. Below is a detailed breakdown of Senna bottom counters against bottom champions with a minimum of 100 games.
Cassiopeia
the Serpent's Embrace
Senna wins against Cassiopeia 43.06% of the time which is 5.89% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Senna wins against Cassiopeia 9.58% less often than would be expected.
The average opponent winrate against Cassiopeia is 48.95%.
Syndra
the Dark Sovereign
Senna wins against Syndra 44.14% of the time which is 3.72% lower against Syndra than the average opponent.
After normalising both champions win rates Senna wins against Syndra 7.41% less often than would be expected.
The average opponent winrate against Syndra is 47.86%.
Aurelion Sol
The Star Forger
Senna wins against Aurelion Sol 45.33% of the time which is 1.18% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 4.87% less often than would be expected.
The average opponent winrate against Aurelion Sol is 46.51%.
Hwei
the Visionary
Senna wins against Hwei 45.37% of the time which is 0.73% lower against Hwei than the average opponent.
After normalising both champions win rates Senna wins against Hwei 4.41% less often than would be expected.
The average opponent winrate against Hwei is 46.10%.
Karthus
the Deathsinger
Senna wins against Karthus 45.72% of the time which is 0.16% higher against Karthus than the average opponent.
After normalising both champions win rates Senna wins against Karthus 3.52% less often than would be expected.
The average opponent winrate against Karthus is 45.56%.
Vel'Koz
the Eye of the Void
Senna wins against Vel'Koz 46.06% of the time which is 1.97% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Senna wins against Vel'Koz 5.66% less often than would be expected.
The average opponent winrate against Vel'Koz is 48.03%.
Heimerdinger
the Revered Inventor
Senna wins against Heimerdinger 47.37% of the time which is 2.87% higher against Heimerdinger than the average opponent.
After normalising both champions win rates Senna wins against Heimerdinger 0.80% less often than would be expected.
The average opponent winrate against Heimerdinger is 44.50%.
Kog'Maw
the Mouth of the Abyss
Senna wins against Kog'Maw 48.95% of the time which is 2.63% higher against Kog'Maw than the average opponent.
After normalising both champions win rates Senna wins against Kog'Maw 1.06% less often than would be expected.
The average opponent winrate against Kog'Maw is 46.32%.
Lux
the Lady of Luminosity
Senna wins against Lux 49.00% of the time which is 0.41% higher against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 3.28% less often than would be expected.
The average opponent winrate against Lux is 48.59%.
Nilah
the Joy Unbound
Senna wins against Nilah 49.29% of the time which is 3.52% higher against Nilah than the average opponent.
After normalising both champions win rates Senna wins against Nilah 0.16% less often than would be expected.
The average opponent winrate against Nilah is 45.77%.
Swain
the Noxian Grand General
Senna wins against Swain 49.35% of the time which is 1.90% higher against Swain than the average opponent.
After normalising both champions win rates Senna wins against Swain 1.79% less often than would be expected.
The average opponent winrate against Swain is 47.45%.
Xerath
the Magus Ascendant
Senna wins against Xerath 50.00% of the time which is 1.86% higher against Xerath than the average opponent.
After normalising both champions win rates Senna wins against Xerath 1.83% less often than would be expected.
The average opponent winrate against Xerath is 48.14%.
Veigar
the Tiny Master of Evil
Senna wins against Veigar 50.00% of the time which is 2.90% higher against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 0.79% less often than would be expected.
The average opponent winrate against Veigar is 47.10%.
Seraphine
the Starry-Eyed Songstress
Senna wins against Seraphine 50.20% of the time which is 0.97% higher against Seraphine than the average opponent.
After normalising both champions win rates Senna wins against Seraphine 2.72% less often than would be expected.
The average opponent winrate against Seraphine is 49.23%.
Tristana
the Yordle Gunner
Senna wins against Tristana 50.69% of the time which is 2.77% higher against Tristana than the average opponent.
After normalising both champions win rates Senna wins against Tristana 0.92% less often than would be expected.
The average opponent winrate against Tristana is 47.92%.
Zyra
Rise of the Thorns
Senna wins against Zyra 50.78% of the time which is 4.12% higher against Zyra than the average opponent.
After normalising both champions win rates Senna wins against Zyra 0.43% more often than would be expected.
The average opponent winrate against Zyra is 46.66%.
Twitch
the Plague Rat
Senna wins against Twitch 50.93% of the time which is 3.34% higher against Twitch than the average opponent.
After normalising both champions win rates Senna wins against Twitch 0.35% less often than would be expected.
The average opponent winrate against Twitch is 47.59%.
Sivir
the Battle Mistress
Senna wins against Sivir 51.28% of the time which is 4.11% higher against Sivir than the average opponent.
After normalising both champions win rates Senna wins against Sivir 0.42% more often than would be expected.
The average opponent winrate against Sivir is 47.17%.
Miss Fortune
the Bounty Hunter
Senna wins against Miss Fortune 51.34% of the time which is 3.46% higher against Miss Fortune than the average opponent.
After normalising both champions win rates Senna wins against Miss Fortune 0.23% less often than would be expected.
The average opponent winrate against Miss Fortune is 47.88%.
Jinx
the Loose Cannon
Senna wins against Jinx 51.47% of the time which is 4.23% higher against Jinx than the average opponent.
After normalising both champions win rates Senna wins against Jinx 0.54% more often than would be expected.
The average opponent winrate against Jinx is 47.24%.
Corki
the Daring Bombardier
Senna wins against Corki 51.70% of the time which is 1.84% higher against Corki than the average opponent.
After normalising both champions win rates Senna wins against Corki 1.85% less often than would be expected.
The average opponent winrate against Corki is 49.86%.
Ziggs
the Hexplosives Expert
Senna wins against Ziggs 51.90% of the time which is 1.70% higher against Ziggs than the average opponent.
After normalising both champions win rates Senna wins against Ziggs 1.99% less often than would be expected.
The average opponent winrate against Ziggs is 50.20%.
Smolder
the Fiery Fledgling
Senna wins against Smolder 51.93% of the time which is 3.03% higher against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 0.66% less often than would be expected.
The average opponent winrate against Smolder is 48.90%.
Jhin
the Virtuoso
Senna wins against Jhin 52.59% of the time which is 3.08% higher against Jhin than the average opponent.
After normalising both champions win rates Senna wins against Jhin 0.61% less often than would be expected.
The average opponent winrate against Jhin is 49.51%.
Lucian
the Purifier
Senna wins against Lucian 52.76% of the time which is 4.10% higher against Lucian than the average opponent.
After normalising both champions win rates Senna wins against Lucian 0.41% more often than would be expected.
The average opponent winrate against Lucian is 48.66%.
Aphelios
the Weapon of the Faithful
Senna wins against Aphelios 52.82% of the time which is 3.05% higher against Aphelios than the average opponent.
After normalising both champions win rates Senna wins against Aphelios 0.64% less often than would be expected.
The average opponent winrate against Aphelios is 49.77%.
Caitlyn
the Sheriff of Piltover
Senna wins against Caitlyn 52.85% of the time which is 3.18% higher against Caitlyn than the average opponent.
After normalising both champions win rates Senna wins against Caitlyn 0.51% less often than would be expected.
The average opponent winrate against Caitlyn is 49.67%.
Vayne
the Night Hunter
Senna wins against Vayne 52.86% of the time which is 5.50% higher against Vayne than the average opponent.
After normalising both champions win rates Senna wins against Vayne 1.81% more often than would be expected.
The average opponent winrate against Vayne is 47.36%.
Varus
the Arrow of Retribution
Senna wins against Varus 53.02% of the time which is 2.44% higher against Varus than the average opponent.
After normalising both champions win rates Senna wins against Varus 1.25% less often than would be expected.
The average opponent winrate against Varus is 50.58%.
Xayah
the Rebel
Senna wins against Xayah 53.08% of the time which is 4.57% higher against Xayah than the average opponent.
After normalising both champions win rates Senna wins against Xayah 0.88% more often than would be expected.
The average opponent winrate against Xayah is 48.51%.
Ashe
the Frost Archer
Senna wins against Ashe 53.38% of the time which is 4.80% higher against Ashe than the average opponent.
After normalising both champions win rates Senna wins against Ashe 1.11% more often than would be expected.
The average opponent winrate against Ashe is 48.58%.
Viktor
the Herald of the Arcane
Senna wins against Viktor 53.45% of the time which is 5.83% higher against Viktor than the average opponent.
After normalising both champions win rates Senna wins against Viktor 2.14% more often than would be expected.
The average opponent winrate against Viktor is 47.62%.
Kai'Sa
Daughter of the Void
Senna wins against Kai'Sa 53.65% of the time which is 3.72% higher against Kai'Sa than the average opponent.
After normalising both champions win rates Senna wins against Kai'Sa 0.03% more often than would be expected.
The average opponent winrate against Kai'Sa is 49.93%.
Zeri
The Spark of Zaun
Senna wins against Zeri 53.65% of the time which is 4.21% higher against Zeri than the average opponent.
After normalising both champions win rates Senna wins against Zeri 0.52% more often than would be expected.
The average opponent winrate against Zeri is 49.44%.
Brand
the Burning Vengeance
Senna wins against Brand 53.79% of the time which is 4.08% higher against Brand than the average opponent.
After normalising both champions win rates Senna wins against Brand 0.39% more often than would be expected.
The average opponent winrate against Brand is 49.71%.
Ezreal
the Prodigal Explorer
Senna wins against Ezreal 54.44% of the time which is 3.15% higher against Ezreal than the average opponent.
After normalising both champions win rates Senna wins against Ezreal 0.53% less often than would be expected.
The average opponent winrate against Ezreal is 51.29%.
Mel
the Soul's Reflection
Senna wins against Mel 54.46% of the time which is 4.21% higher against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 0.52% more often than would be expected.
The average opponent winrate against Mel is 50.25%.
Draven
the Glorious Executioner
Senna wins against Draven 54.81% of the time which is 4.70% higher against Draven than the average opponent.
After normalising both champions win rates Senna wins against Draven 1.01% more often than would be expected.
The average opponent winrate against Draven is 50.11%.
Yasuo
the Unforgiven
Senna wins against Yasuo 54.84% of the time which is 7.88% higher against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 4.19% more often than would be expected.
The average opponent winrate against Yasuo is 46.96%.
Samira
the Desert Rose
Senna wins against Samira 55.23% of the time which is 5.71% higher against Samira than the average opponent.
After normalising both champions win rates Senna wins against Samira 2.02% more often than would be expected.
The average opponent winrate against Samira is 49.52%.
Kalista
the Spear of Vengeance
Senna wins against Kalista 56.07% of the time which is 3.35% higher against Kalista than the average opponent.
After normalising both champions win rates Senna wins against Kalista 0.33% less often than would be expected.
The average opponent winrate against Kalista is 52.72%.
