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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: 7,579,129
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 middle Counters
Senna bottom on Patch 15.16 is the strongest counter to middle champions of Orianna, Syndra & Smolder. While Senna bottom is countered most by middle champions of Vex, Vel'Koz & Twisted Fate. Below is a detailed breakdown of Senna bottom counters against middle champions with a minimum of 100 games.
Vex
the Gloomist
Senna wins against Vex 41.03% of the time which is 5.53% lower against Vex than the average opponent.
After normalising both champions win rates Senna wins against Vex 7.86% less often than would be expected.
The average opponent winrate against Vex is 46.56%.
Vel'Koz
the Eye of the Void
Senna wins against Vel'Koz 43.00% of the time which is 4.08% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Senna wins against Vel'Koz 6.41% less often than would be expected.
The average opponent winrate against Vel'Koz is 47.08%.
Twisted Fate
the Card Master
Senna wins against Twisted Fate 45.45% of the time which is 3.23% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Senna wins against Twisted Fate 5.56% less often than would be expected.
The average opponent winrate against Twisted Fate is 48.68%.
Kayle
the Righteous
Senna wins against Kayle 46.00% of the time which is 0.25% lower against Kayle than the average opponent.
After normalising both champions win rates Senna wins against Kayle 2.58% less often than would be expected.
The average opponent winrate against Kayle is 46.25%.
Aurora
the Witch Between Worlds
Senna wins against Aurora 46.07% of the time which is 3.20% lower against Aurora than the average opponent.
After normalising both champions win rates Senna wins against Aurora 5.53% less often than would be expected.
The average opponent winrate against Aurora is 49.27%.
Akshan
the Rogue Sentinel
Senna wins against Akshan 46.59% of the time which is 1.35% lower against Akshan than the average opponent.
After normalising both champions win rates Senna wins against Akshan 3.68% less often than would be expected.
The average opponent winrate against Akshan is 47.94%.
Akali
the Rogue Assassin
Senna wins against Akali 47.11% of the time which is 1.14% lower against Akali than the average opponent.
After normalising both champions win rates Senna wins against Akali 3.47% less often than would be expected.
The average opponent winrate against Akali is 48.25%.
Ekko
the Boy Who Shattered Time
Senna wins against Ekko 47.29% of the time which is 0.13% lower against Ekko than the average opponent.
After normalising both champions win rates Senna wins against Ekko 2.46% less often than would be expected.
The average opponent winrate against Ekko is 47.42%.
Cassiopeia
the Serpent's Embrace
Senna wins against Cassiopeia 47.37% of the time which is 1.54% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Senna wins against Cassiopeia 3.87% less often than would be expected.
The average opponent winrate against Cassiopeia is 48.91%.
Irelia
the Blade Dancer
Senna wins against Irelia 47.70% of the time which is 0.42% lower against Irelia than the average opponent.
After normalising both champions win rates Senna wins against Irelia 2.75% less often than would be expected.
The average opponent winrate against Irelia is 48.12%.
Hwei
the Visionary
Senna wins against Hwei 48.07% of the time which is 0.73% lower against Hwei than the average opponent.
After normalising both champions win rates Senna wins against Hwei 3.06% less often than would be expected.
The average opponent winrate against Hwei is 48.80%.
Diana
Scorn of the Moon
Senna wins against Diana 48.14% of the time which is 1.15% higher against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 1.18% less often than would be expected.
The average opponent winrate against Diana is 46.99%.
Lux
the Lady of Luminosity
Senna wins against Lux 48.80% of the time which is 1.85% higher against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 0.48% less often than would be expected.
The average opponent winrate against Lux is 46.95%.
Xerath
the Magus Ascendant
Senna wins against Xerath 48.96% of the time which is 2.35% higher against Xerath than the average opponent.
After normalising both champions win rates Senna wins against Xerath 0.02% more often than would be expected.
The average opponent winrate against Xerath is 46.61%.
Annie
the Dark Child
Senna wins against Annie 50.00% of the time which is 2.75% higher against Annie than the average opponent.
After normalising both champions win rates Senna wins against Annie 0.42% more often than would be expected.
The average opponent winrate against Annie is 47.25%.
LeBlanc
the Deceiver
Senna wins against LeBlanc 50.00% of the time which is 1.94% higher against LeBlanc than the average opponent.
After normalising both champions win rates Senna wins against LeBlanc 0.39% less often than would be expected.
The average opponent winrate against LeBlanc is 48.06%.
Aurelion Sol
The Star Forger
Senna wins against Aurelion Sol 50.29% of the time which is 1.72% higher against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 0.61% less often than would be expected.
The average opponent winrate against Aurelion Sol is 48.57%.
Talon
the Blade's Shadow
Senna wins against Talon 50.57% of the time which is 3.22% higher against Talon than the average opponent.
After normalising both champions win rates Senna wins against Talon 0.89% more often than would be expected.
The average opponent winrate against Talon is 47.35%.
Ahri
the Nine-Tailed Fox
Senna wins against Ahri 50.63% of the time which is 1.42% higher against Ahri than the average opponent.
After normalising both champions win rates Senna wins against Ahri 0.91% less often than would be expected.
The average opponent winrate against Ahri is 49.21%.
Qiyana
Empress of the Elements
Senna wins against Qiyana 50.69% of the time which is 2.44% higher against Qiyana than the average opponent.
After normalising both champions win rates Senna wins against Qiyana 0.11% more often than would be expected.
The average opponent winrate against Qiyana is 48.25%.
Lissandra
the Ice Witch
Senna wins against Lissandra 50.83% of the time which is 3.12% higher against Lissandra than the average opponent.
After normalising both champions win rates Senna wins against Lissandra 0.79% more often than would be expected.
The average opponent winrate against Lissandra is 47.71%.
Anivia
the Cryophoenix
Senna wins against Anivia 50.91% of the time which is 3.89% higher against Anivia than the average opponent.
After normalising both champions win rates Senna wins against Anivia 1.56% more often than would be expected.
The average opponent winrate against Anivia is 47.02%.
Katarina
the Sinister Blade
Senna wins against Katarina 51.14% of the time which is 2.67% higher against Katarina than the average opponent.
After normalising both champions win rates Senna wins against Katarina 0.34% more often than would be expected.
The average opponent winrate against Katarina is 48.47%.
Sylas
the Unshackled
Senna wins against Sylas 51.27% of the time which is 1.81% higher against Sylas than the average opponent.
After normalising both champions win rates Senna wins against Sylas 0.52% less often than would be expected.
The average opponent winrate against Sylas is 49.46%.
Yone
the Unforgotten
Senna wins against Yone 51.39% of the time which is 0.01% higher against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 2.32% less often than would be expected.
The average opponent winrate against Yone is 51.38%.
Malzahar
the Prophet of the Void
Senna wins against Malzahar 51.58% of the time which is 4.10% higher against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 1.77% more often than would be expected.
The average opponent winrate against Malzahar is 47.48%.
Vladimir
the Crimson Reaper
Senna wins against Vladimir 51.64% of the time which is 3.58% higher against Vladimir than the average opponent.
After normalising both champions win rates Senna wins against Vladimir 1.25% more often than would be expected.
The average opponent winrate against Vladimir is 48.06%.
Yasuo
the Unforgiven
Senna wins against Yasuo 51.72% of the time which is 2.77% higher against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 0.44% more often than would be expected.
The average opponent winrate against Yasuo is 48.95%.
Viego
The Ruined King
Senna wins against Viego 51.82% of the time which is 0.79% higher against Viego than the average opponent.
After normalising both champions win rates Senna wins against Viego 1.54% less often than would be expected.
The average opponent winrate against Viego is 51.03%.
Viktor
the Herald of the Arcane
Senna wins against Viktor 51.90% of the time which is 2.89% higher against Viktor than the average opponent.
After normalising both champions win rates Senna wins against Viktor 0.56% more often than would be expected.
The average opponent winrate against Viktor is 49.01%.
Zed
the Master of Shadows
Senna wins against Zed 51.90% of the time which is 2.92% higher against Zed than the average opponent.
After normalising both champions win rates Senna wins against Zed 0.59% more often than would be expected.
The average opponent winrate against Zed is 48.98%.
Veigar
the Tiny Master of Evil
Senna wins against Veigar 51.97% of the time which is 4.06% higher against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 1.73% more often than would be expected.
The average opponent winrate against Veigar is 47.91%.
Galio
the Colossus
Senna wins against Galio 52.18% of the time which is 4.63% higher against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 2.30% more often than would be expected.
The average opponent winrate against Galio is 47.55%.
Zoe
the Aspect of Twilight
Senna wins against Zoe 52.60% of the time which is 4.16% higher against Zoe than the average opponent.
After normalising both champions win rates Senna wins against Zoe 1.83% more often than would be expected.
The average opponent winrate against Zoe is 48.44%.
Ryze
the Rune Mage
Senna wins against Ryze 52.66% of the time which is 3.33% higher against Ryze than the average opponent.
After normalising both champions win rates Senna wins against Ryze 1.00% more often than would be expected.
The average opponent winrate against Ryze is 49.33%.
Ziggs
the Hexplosives Expert
Senna wins against Ziggs 52.88% of the time which is 4.03% higher against Ziggs than the average opponent.
After normalising both champions win rates Senna wins against Ziggs 1.70% more often than would be expected.
The average opponent winrate against Ziggs is 48.85%.
Mel
the Soul's Reflection
Senna wins against Mel 53.13% of the time which is 2.27% higher against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 0.06% less often than would be expected.
The average opponent winrate against Mel is 50.86%.
Fizz
the Tidal Trickster
Senna wins against Fizz 53.37% of the time which is 6.78% higher against Fizz than the average opponent.
After normalising both champions win rates Senna wins against Fizz 4.45% more often than would be expected.
The average opponent winrate against Fizz is 46.59%.
Azir
the Emperor of the Sands
Senna wins against Azir 53.73% of the time which is 3.20% higher against Azir than the average opponent.
After normalising both champions win rates Senna wins against Azir 0.87% more often than would be expected.
The average opponent winrate against Azir is 50.53%.
Kassadin
the Void Walker
Senna wins against Kassadin 53.74% of the time which is 4.49% higher against Kassadin than the average opponent.
After normalising both champions win rates Senna wins against Kassadin 2.16% more often than would be expected.
The average opponent winrate against Kassadin is 49.25%.
Taliyah
the Stoneweaver
Senna wins against Taliyah 54.12% of the time which is 4.40% higher against Taliyah than the average opponent.
After normalising both champions win rates Senna wins against Taliyah 2.07% more often than would be expected.
The average opponent winrate against Taliyah is 49.72%.
Smolder
the Fiery Fledgling
Senna wins against Smolder 55.33% of the time which is 3.18% higher against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 0.85% more often than would be expected.
The average opponent winrate against Smolder is 52.15%.
Syndra
the Dark Sovereign
Senna wins against Syndra 56.79% of the time which is 8.44% higher against Syndra than the average opponent.
After normalising both champions win rates Senna wins against Syndra 6.11% more often than would be expected.
The average opponent winrate against Syndra is 48.35%.
Orianna
the Lady of Clockwork
Senna wins against Orianna 57.46% of the time which is 7.51% higher against Orianna than the average opponent.
After normalising both champions win rates Senna wins against Orianna 5.18% more often than would be expected.
The average opponent winrate against Orianna is 49.95%.
