

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: 5,933,401
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 support vs middle Counters
Senna support on Patch 15.9 is the strongest counter to middle champions of Cho'Gath, Jayce & Sylas. While Senna support is countered most by middle champions of Kayle, Vel'Koz & Cassiopeia. Below is a detailed breakdown of Senna support counters against middle champions with a minimum of 100 games.


Kayle
the Righteous
Senna wins against Kayle 40.11% of the time which is 6.97% lower against Kayle than the average opponent.
After normalising both champions win rates Senna wins against Kayle 8.14% less often than would be expected.
The average opponent winrate against Kayle is 47.08%.


Vel'Koz
the Eye of the Void
Senna wins against Vel'Koz 42.38% of the time which is 4.32% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Senna wins against Vel'Koz 5.49% less often than would be expected.
The average opponent winrate against Vel'Koz is 46.70%.


Cassiopeia
the Serpent's Embrace
Senna wins against Cassiopeia 43.02% of the time which is 4.52% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Senna wins against Cassiopeia 5.69% less often than would be expected.
The average opponent winrate against Cassiopeia is 47.54%.


Vex
the Gloomist
Senna wins against Vex 43.44% of the time which is 3.88% lower against Vex than the average opponent.
After normalising both champions win rates Senna wins against Vex 5.05% less often than would be expected.
The average opponent winrate against Vex is 47.32%.


Corki
the Daring Bombardier
Senna wins against Corki 45.95% of the time which is 5.61% lower against Corki than the average opponent.
After normalising both champions win rates Senna wins against Corki 6.78% less often than would be expected.
The average opponent winrate against Corki is 51.56%.


Akshan
the Rogue Sentinel
Senna wins against Akshan 46.59% of the time which is 1.79% lower against Akshan than the average opponent.
After normalising both champions win rates Senna wins against Akshan 2.96% less often than would be expected.
The average opponent winrate against Akshan is 48.38%.


Xerath
the Magus Ascendant
Senna wins against Xerath 47.59% of the time which is 0.35% lower against Xerath than the average opponent.
After normalising both champions win rates Senna wins against Xerath 1.52% less often than would be expected.
The average opponent winrate against Xerath is 47.94%.


Katarina
the Sinister Blade
Senna wins against Katarina 47.72% of the time which is 0.70% lower against Katarina than the average opponent.
After normalising both champions win rates Senna wins against Katarina 1.87% less often than would be expected.
The average opponent winrate against Katarina is 48.42%.


Fizz
the Tidal Trickster
Senna wins against Fizz 48.04% of the time which is 0.25% lower against Fizz than the average opponent.
After normalising both champions win rates Senna wins against Fizz 1.42% less often than would be expected.
The average opponent winrate against Fizz is 48.29%.


Yasuo
the Unforgiven
Senna wins against Yasuo 48.24% of the time which is 1.03% lower against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 2.20% less often than would be expected.
The average opponent winrate against Yasuo is 49.27%.


Azir
the Emperor of the Sands
Senna wins against Azir 48.59% of the time which is 1.93% lower against Azir than the average opponent.
After normalising both champions win rates Senna wins against Azir 3.10% less often than would be expected.
The average opponent winrate against Azir is 50.52%.


Ahri
the Nine-Tailed Fox
Senna wins against Ahri 48.93% of the time which is 0.07% lower against Ahri than the average opponent.
After normalising both champions win rates Senna wins against Ahri 1.24% less often than would be expected.
The average opponent winrate against Ahri is 49.00%.


Anivia
the Cryophoenix
Senna wins against Anivia 48.94% of the time which is 1.69% higher against Anivia than the average opponent.
After normalising both champions win rates Senna wins against Anivia 0.52% more often than would be expected.
The average opponent winrate against Anivia is 47.25%.


Lissandra
the Ice Witch
Senna wins against Lissandra 49.00% of the time which is 0.76% higher against Lissandra than the average opponent.
After normalising both champions win rates Senna wins against Lissandra 0.41% less often than would be expected.
The average opponent winrate against Lissandra is 48.24%.


Galio
the Colossus
Senna wins against Galio 49.06% of the time which is 0.85% higher against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 0.32% less often than would be expected.
The average opponent winrate against Galio is 48.21%.


Kennen
the Heart of the Tempest
Senna wins against Kennen 49.09% of the time which is 1.69% higher against Kennen than the average opponent.
After normalising both champions win rates Senna wins against Kennen 0.52% more often than would be expected.
The average opponent winrate against Kennen is 47.40%.


Ekko
the Boy Who Shattered Time
Senna wins against Ekko 49.15% of the time which is 0.88% higher against Ekko than the average opponent.
After normalising both champions win rates Senna wins against Ekko 0.29% less often than would be expected.
The average opponent winrate against Ekko is 48.27%.


Zoe
the Aspect of Twilight
Senna wins against Zoe 49.19% of the time which is 1.02% higher against Zoe than the average opponent.
After normalising both champions win rates Senna wins against Zoe 0.15% less often than would be expected.
The average opponent winrate against Zoe is 48.17%.


Lux
the Lady of Luminosity
Senna wins against Lux 49.22% of the time which is 0.89% higher against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 0.28% less often than would be expected.
The average opponent winrate against Lux is 48.33%.


Akali
the Rogue Assassin
Senna wins against Akali 49.37% of the time which is 0.12% lower against Akali than the average opponent.
After normalising both champions win rates Senna wins against Akali 1.29% less often than would be expected.
The average opponent winrate against Akali is 49.49%.


Ryze
the Rune Mage
Senna wins against Ryze 49.39% of the time which is 0.65% lower against Ryze than the average opponent.
After normalising both champions win rates Senna wins against Ryze 1.82% less often than would be expected.
The average opponent winrate against Ryze is 50.04%.


Annie
the Dark Child
Senna wins against Annie 49.42% of the time which is 1.88% higher against Annie than the average opponent.
After normalising both champions win rates Senna wins against Annie 0.71% more often than would be expected.
The average opponent winrate against Annie is 47.54%.


Talon
the Blade's Shadow
Senna wins against Talon 49.53% of the time which is 0.75% higher against Talon than the average opponent.
After normalising both champions win rates Senna wins against Talon 0.42% less often than would be expected.
The average opponent winrate against Talon is 48.78%.


Malphite
Shard of the Monolith
Senna wins against Malphite 49.56% of the time which is 1.01% higher against Malphite than the average opponent.
After normalising both champions win rates Senna wins against Malphite 0.16% less often than would be expected.
The average opponent winrate against Malphite is 48.55%.


Hwei
the Visionary
Senna wins against Hwei 49.93% of the time which is 0.79% higher against Hwei than the average opponent.
After normalising both champions win rates Senna wins against Hwei 0.38% less often than would be expected.
The average opponent winrate against Hwei is 49.14%.


Qiyana
Empress of the Elements
Senna wins against Qiyana 50.00% of the time which is 0.91% higher against Qiyana than the average opponent.
After normalising both champions win rates Senna wins against Qiyana 0.26% less often than would be expected.
The average opponent winrate against Qiyana is 49.09%.


Irelia
the Blade Dancer
Senna wins against Irelia 50.50% of the time which is 1.06% higher against Irelia than the average opponent.
After normalising both champions win rates Senna wins against Irelia 0.11% less often than would be expected.
The average opponent winrate against Irelia is 49.44%.


Syndra
the Dark Sovereign
Senna wins against Syndra 50.56% of the time which is 1.44% higher against Syndra than the average opponent.
After normalising both champions win rates Senna wins against Syndra 0.27% more often than would be expected.
The average opponent winrate against Syndra is 49.12%.


LeBlanc
the Deceiver
Senna wins against LeBlanc 50.92% of the time which is 0.91% higher against LeBlanc than the average opponent.
After normalising both champions win rates Senna wins against LeBlanc 0.26% less often than would be expected.
The average opponent winrate against LeBlanc is 50.01%.


Vladimir
the Crimson Reaper
Senna wins against Vladimir 51.08% of the time which is 2.63% higher against Vladimir than the average opponent.
After normalising both champions win rates Senna wins against Vladimir 1.46% more often than would be expected.
The average opponent winrate against Vladimir is 48.45%.


Swain
the Noxian Grand General
Senna wins against Swain 51.28% of the time which is 4.27% higher against Swain than the average opponent.
After normalising both champions win rates Senna wins against Swain 3.10% more often than would be expected.
The average opponent winrate against Swain is 47.01%.


Orianna
the Lady of Clockwork
Senna wins against Orianna 51.75% of the time which is 2.53% higher against Orianna than the average opponent.
After normalising both champions win rates Senna wins against Orianna 1.36% more often than would be expected.
The average opponent winrate against Orianna is 49.22%.


Yone
the Unforgotten
Senna wins against Yone 51.82% of the time which is 0.78% lower against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 1.95% less often than would be expected.
The average opponent winrate against Yone is 52.60%.


Pantheon
the Unbreakable Spear
Senna wins against Pantheon 51.85% of the time which is 6.37% higher against Pantheon than the average opponent.
After normalising both champions win rates Senna wins against Pantheon 5.20% more often than would be expected.
The average opponent winrate against Pantheon is 45.48%.


Zed
the Master of Shadows
Senna wins against Zed 52.12% of the time which is 2.84% higher against Zed than the average opponent.
After normalising both champions win rates Senna wins against Zed 1.67% more often than would be expected.
The average opponent winrate against Zed is 49.28%.


Aurelion Sol
The Star Forger
Senna wins against Aurelion Sol 52.29% of the time which is 3.15% higher against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 1.98% more often than would be expected.
The average opponent winrate against Aurelion Sol is 49.14%.


Taliyah
the Stoneweaver
Senna wins against Taliyah 52.38% of the time which is 4.16% higher against Taliyah than the average opponent.
After normalising both champions win rates Senna wins against Taliyah 2.99% more often than would be expected.
The average opponent winrate against Taliyah is 48.22%.


Mel
the Soul's Reflection
Senna wins against Mel 52.51% of the time which is 2.26% higher against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 1.09% more often than would be expected.
The average opponent winrate against Mel is 50.25%.


Twisted Fate
the Card Master
Senna wins against Twisted Fate 52.53% of the time which is 1.52% higher against Twisted Fate than the average opponent.
After normalising both champions win rates Senna wins against Twisted Fate 0.35% more often than would be expected.
The average opponent winrate against Twisted Fate is 51.01%.


Aurora
the Witch Between Worlds
Senna wins against Aurora 52.70% of the time which is 1.34% higher against Aurora than the average opponent.
After normalising both champions win rates Senna wins against Aurora 0.17% more often than would be expected.
The average opponent winrate against Aurora is 51.36%.


Smolder
the Fiery Fledgling
Senna wins against Smolder 52.85% of the time which is 1.86% lower against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 3.03% less often than would be expected.
The average opponent winrate against Smolder is 54.71%.


Veigar
the Tiny Master of Evil
Senna wins against Veigar 52.88% of the time which is 4.39% higher against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 3.22% more often than would be expected.
The average opponent winrate against Veigar is 48.49%.


Diana
Scorn of the Moon
Senna wins against Diana 53.32% of the time which is 5.65% higher against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 4.48% more often than would be expected.
The average opponent winrate against Diana is 47.67%.


Malzahar
the Prophet of the Void
Senna wins against Malzahar 53.41% of the time which is 5.17% higher against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 4.00% more often than would be expected.
The average opponent winrate against Malzahar is 48.24%.


Kassadin
the Void Walker
Senna wins against Kassadin 53.45% of the time which is 4.02% higher against Kassadin than the average opponent.
After normalising both champions win rates Senna wins against Kassadin 2.85% more often than would be expected.
The average opponent winrate against Kassadin is 49.43%.


Naafiri
the Hound of a Hundred Bites
Senna wins against Naafiri 53.79% of the time which is 6.61% higher against Naafiri than the average opponent.
After normalising both champions win rates Senna wins against Naafiri 5.44% more often than would be expected.
The average opponent winrate against Naafiri is 47.18%.


Viktor
the Herald of the Arcane
Senna wins against Viktor 53.87% of the time which is 3.91% higher against Viktor than the average opponent.
After normalising both champions win rates Senna wins against Viktor 2.74% more often than would be expected.
The average opponent winrate against Viktor is 49.96%.


Sylas
the Unshackled
Senna wins against Sylas 54.03% of the time which is 4.08% higher against Sylas than the average opponent.
After normalising both champions win rates Senna wins against Sylas 2.91% more often than would be expected.
The average opponent winrate against Sylas is 49.95%.


Jayce
the Defender of Tomorrow
Senna wins against Jayce 54.73% of the time which is 4.25% higher against Jayce than the average opponent.
After normalising both champions win rates Senna wins against Jayce 3.08% more often than would be expected.
The average opponent winrate against Jayce is 50.48%.


Cho'Gath
the Terror of the Void
Senna wins against Cho'Gath 55.81% of the time which is 8.91% higher against Cho'Gath than the average opponent.
After normalising both champions win rates Senna wins against Cho'Gath 7.74% more often than would be expected.
The average opponent winrate against Cho'Gath is 46.90%.