

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.
Iron Champions Analysed: 6,867,723
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 15.17 is the strongest counter to middle champions of Taliyah, Azir & Vel'Koz. While Senna support is countered most by middle champions of Malphite, Neeko & Lux. Below is a detailed breakdown of Senna support counters against middle champions with a minimum of 100 games.


Malphite
Shard of the Monolith
Senna wins against Malphite 40.11% of the time which is 10.12% lower against Malphite than the average opponent.
After normalising both champions win rates Senna wins against Malphite 3.65% less often than would be expected.
The average opponent winrate against Malphite is 50.23%.


Neeko
the Curious Chameleon
Senna wins against Neeko 41.71% of the time which is 11.63% lower against Neeko than the average opponent.
After normalising both champions win rates Senna wins against Neeko 5.16% less often than would be expected.
The average opponent winrate against Neeko is 53.34%.


Lux
the Lady of Luminosity
Senna wins against Lux 41.89% of the time which is 8.89% lower against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 2.42% less often than would be expected.
The average opponent winrate against Lux is 50.78%.


Heimerdinger
the Revered Inventor
Senna wins against Heimerdinger 42.18% of the time which is 6.90% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Senna wins against Heimerdinger 0.44% less often than would be expected.
The average opponent winrate against Heimerdinger is 49.08%.


Veigar
the Tiny Master of Evil
Senna wins against Veigar 42.34% of the time which is 7.93% lower against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 1.46% less often than would be expected.
The average opponent winrate against Veigar is 50.27%.


Swain
the Noxian Grand General
Senna wins against Swain 42.37% of the time which is 8.74% lower against Swain than the average opponent.
After normalising both champions win rates Senna wins against Swain 2.27% less often than would be expected.
The average opponent winrate against Swain is 51.11%.


Talon
the Blade's Shadow
Senna wins against Talon 42.59% of the time which is 11.09% lower against Talon than the average opponent.
After normalising both champions win rates Senna wins against Talon 4.62% less often than would be expected.
The average opponent winrate against Talon is 53.68%.


Kassadin
the Void Walker
Senna wins against Kassadin 43.20% of the time which is 10.35% lower against Kassadin than the average opponent.
After normalising both champions win rates Senna wins against Kassadin 3.88% less often than would be expected.
The average opponent winrate against Kassadin is 53.55%.


Vex
the Gloomist
Senna wins against Vex 43.25% of the time which is 9.24% lower against Vex than the average opponent.
After normalising both champions win rates Senna wins against Vex 2.77% less often than would be expected.
The average opponent winrate against Vex is 52.49%.


Malzahar
the Prophet of the Void
Senna wins against Malzahar 43.36% of the time which is 6.00% lower against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 0.47% more often than would be expected.
The average opponent winrate against Malzahar is 49.36%.


Fizz
the Tidal Trickster
Senna wins against Fizz 43.39% of the time which is 8.18% lower against Fizz than the average opponent.
After normalising both champions win rates Senna wins against Fizz 1.70% less often than would be expected.
The average opponent winrate against Fizz is 51.57%.


Galio
the Colossus
Senna wins against Galio 43.43% of the time which is 7.05% lower against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 0.58% less often than would be expected.
The average opponent winrate against Galio is 50.48%.


Ziggs
the Hexplosives Expert
Senna wins against Ziggs 43.51% of the time which is 8.49% lower against Ziggs than the average opponent.
After normalising both champions win rates Senna wins against Ziggs 2.01% less often than would be expected.
The average opponent winrate against Ziggs is 52.00%.


Smolder
the Fiery Fledgling
Senna wins against Smolder 43.80% of the time which is 9.28% lower against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 2.81% less often than would be expected.
The average opponent winrate against Smolder is 53.08%.


Brand
the Burning Vengeance
Senna wins against Brand 43.87% of the time which is 6.79% lower against Brand than the average opponent.
After normalising both champions win rates Senna wins against Brand 0.32% less often than would be expected.
The average opponent winrate against Brand is 50.66%.


Katarina
the Sinister Blade
Senna wins against Katarina 44.76% of the time which is 9.87% lower against Katarina than the average opponent.
After normalising both champions win rates Senna wins against Katarina 3.41% less often than would be expected.
The average opponent winrate against Katarina is 54.63%.


Aurora
the Witch Between Worlds
Senna wins against Aurora 44.79% of the time which is 8.79% lower against Aurora than the average opponent.
After normalising both champions win rates Senna wins against Aurora 2.32% less often than would be expected.
The average opponent winrate against Aurora is 53.58%.


Naafiri
the Hound of a Hundred Bites
Senna wins against Naafiri 44.93% of the time which is 6.30% lower against Naafiri than the average opponent.
After normalising both champions win rates Senna wins against Naafiri 0.17% more often than would be expected.
The average opponent winrate against Naafiri is 51.23%.


Ryze
the Rune Mage
Senna wins against Ryze 45.36% of the time which is 7.76% lower against Ryze than the average opponent.
After normalising both champions win rates Senna wins against Ryze 1.29% less often than would be expected.
The average opponent winrate against Ryze is 53.12%.


Ekko
the Boy Who Shattered Time
Senna wins against Ekko 45.39% of the time which is 6.94% lower against Ekko than the average opponent.
After normalising both champions win rates Senna wins against Ekko 0.46% less often than would be expected.
The average opponent winrate against Ekko is 52.33%.


Orianna
the Lady of Clockwork
Senna wins against Orianna 45.48% of the time which is 7.96% lower against Orianna than the average opponent.
After normalising both champions win rates Senna wins against Orianna 1.49% less often than would be expected.
The average opponent winrate against Orianna is 53.44%.


Xerath
the Magus Ascendant
Senna wins against Xerath 45.49% of the time which is 6.04% lower against Xerath than the average opponent.
After normalising both champions win rates Senna wins against Xerath 0.44% more often than would be expected.
The average opponent winrate against Xerath is 51.53%.


Anivia
the Cryophoenix
Senna wins against Anivia 45.52% of the time which is 6.79% lower against Anivia than the average opponent.
After normalising both champions win rates Senna wins against Anivia 0.31% less often than would be expected.
The average opponent winrate against Anivia is 52.31%.


Pantheon
the Unbreakable Spear
Senna wins against Pantheon 45.63% of the time which is 5.64% lower against Pantheon than the average opponent.
After normalising both champions win rates Senna wins against Pantheon 0.83% more often than would be expected.
The average opponent winrate against Pantheon is 51.27%.


LeBlanc
the Deceiver
Senna wins against LeBlanc 45.65% of the time which is 8.06% lower against LeBlanc than the average opponent.
After normalising both champions win rates Senna wins against LeBlanc 1.59% less often than would be expected.
The average opponent winrate against LeBlanc is 53.71%.


Viktor
the Herald of the Arcane
Senna wins against Viktor 45.74% of the time which is 6.11% lower against Viktor than the average opponent.
After normalising both champions win rates Senna wins against Viktor 0.37% more often than would be expected.
The average opponent winrate against Viktor is 51.85%.


Yasuo
the Unforgiven
Senna wins against Yasuo 45.84% of the time which is 6.11% lower against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 0.37% more often than would be expected.
The average opponent winrate against Yasuo is 51.95%.


Lissandra
the Ice Witch
Senna wins against Lissandra 46.08% of the time which is 6.41% lower against Lissandra than the average opponent.
After normalising both champions win rates Senna wins against Lissandra 0.06% more often than would be expected.
The average opponent winrate against Lissandra is 52.49%.


Mel
the Soul's Reflection
Senna wins against Mel 46.25% of the time which is 6.46% lower against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 0.01% more often than would be expected.
The average opponent winrate against Mel is 52.71%.


Akali
the Rogue Assassin
Senna wins against Akali 46.28% of the time which is 7.09% lower against Akali than the average opponent.
After normalising both champions win rates Senna wins against Akali 0.62% less often than would be expected.
The average opponent winrate against Akali is 53.37%.


Morgana
the Fallen
Senna wins against Morgana 46.38% of the time which is 2.06% lower against Morgana than the average opponent.
After normalising both champions win rates Senna wins against Morgana 4.40% more often than would be expected.
The average opponent winrate against Morgana is 48.44%.


Diana
Scorn of the Moon
Senna wins against Diana 46.38% of the time which is 5.23% lower against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 1.25% more often than would be expected.
The average opponent winrate against Diana is 51.61%.


Akshan
the Rogue Sentinel
Senna wins against Akshan 46.59% of the time which is 8.49% lower against Akshan than the average opponent.
After normalising both champions win rates Senna wins against Akshan 2.03% less often than would be expected.
The average opponent winrate against Akshan is 55.08%.


Ahri
the Nine-Tailed Fox
Senna wins against Ahri 47.28% of the time which is 6.19% lower against Ahri than the average opponent.
After normalising both champions win rates Senna wins against Ahri 0.28% more often than would be expected.
The average opponent winrate against Ahri is 53.47%.


Vladimir
the Crimson Reaper
Senna wins against Vladimir 47.29% of the time which is 5.93% lower against Vladimir than the average opponent.
After normalising both champions win rates Senna wins against Vladimir 0.54% more often than would be expected.
The average opponent winrate against Vladimir is 53.22%.


Yone
the Unforgotten
Senna wins against Yone 47.54% of the time which is 5.90% lower against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 0.57% more often than would be expected.
The average opponent winrate against Yone is 53.44%.


Aurelion Sol
The Star Forger
Senna wins against Aurelion Sol 47.80% of the time which is 2.67% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 3.80% more often than would be expected.
The average opponent winrate against Aurelion Sol is 50.47%.


Annie
the Dark Child
Senna wins against Annie 48.16% of the time which is 5.37% lower against Annie than the average opponent.
After normalising both champions win rates Senna wins against Annie 1.10% more often than would be expected.
The average opponent winrate against Annie is 53.53%.


Syndra
the Dark Sovereign
Senna wins against Syndra 48.58% of the time which is 4.78% lower against Syndra than the average opponent.
After normalising both champions win rates Senna wins against Syndra 1.69% more often than would be expected.
The average opponent winrate against Syndra is 53.36%.


Qiyana
Empress of the Elements
Senna wins against Qiyana 48.72% of the time which is 8.89% lower against Qiyana than the average opponent.
After normalising both champions win rates Senna wins against Qiyana 2.46% less often than would be expected.
The average opponent winrate against Qiyana is 57.61%.


Irelia
the Blade Dancer
Senna wins against Irelia 48.80% of the time which is 4.23% lower against Irelia than the average opponent.
After normalising both champions win rates Senna wins against Irelia 2.24% more often than would be expected.
The average opponent winrate against Irelia is 53.03%.


Twisted Fate
the Card Master
Senna wins against Twisted Fate 49.23% of the time which is 4.55% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Senna wins against Twisted Fate 1.92% more often than would be expected.
The average opponent winrate against Twisted Fate is 53.78%.


Teemo
the Swift Scout
Senna wins against Teemo 49.63% of the time which is 0.10% lower against Teemo than the average opponent.
After normalising both champions win rates Senna wins against Teemo 6.37% more often than would be expected.
The average opponent winrate against Teemo is 49.73%.


Hwei
the Visionary
Senna wins against Hwei 50.27% of the time which is 2.71% lower against Hwei than the average opponent.
After normalising both champions win rates Senna wins against Hwei 3.76% more often than would be expected.
The average opponent winrate against Hwei is 52.98%.


Zoe
the Aspect of Twilight
Senna wins against Zoe 50.63% of the time which is 5.16% lower against Zoe than the average opponent.
After normalising both champions win rates Senna wins against Zoe 1.29% more often than would be expected.
The average opponent winrate against Zoe is 55.79%.


Zed
the Master of Shadows
Senna wins against Zed 50.63% of the time which is 3.91% lower against Zed than the average opponent.
After normalising both champions win rates Senna wins against Zed 2.55% more often than would be expected.
The average opponent winrate against Zed is 54.54%.


Sylas
the Unshackled
Senna wins against Sylas 51.23% of the time which is 2.79% lower against Sylas than the average opponent.
After normalising both champions win rates Senna wins against Sylas 3.68% more often than would be expected.
The average opponent winrate against Sylas is 54.02%.


Cassiopeia
the Serpent's Embrace
Senna wins against Cassiopeia 52.20% of the time which is 2.23% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Senna wins against Cassiopeia 4.24% more often than would be expected.
The average opponent winrate against Cassiopeia is 54.43%.


Vel'Koz
the Eye of the Void
Senna wins against Vel'Koz 52.60% of the time which is 0.89% higher against Vel'Koz than the average opponent.
After normalising both champions win rates Senna wins against Vel'Koz 7.37% more often than would be expected.
The average opponent winrate against Vel'Koz is 51.71%.


Azir
the Emperor of the Sands
Senna wins against Azir 54.62% of the time which is 1.74% lower against Azir than the average opponent.
After normalising both champions win rates Senna wins against Azir 4.70% more often than would be expected.
The average opponent winrate against Azir is 56.36%.


Taliyah
the Stoneweaver
Senna wins against Taliyah 58.87% of the time which is 2.38% higher against Taliyah than the average opponent.
After normalising both champions win rates Senna wins against Taliyah 8.82% more often than would be expected.
The average opponent winrate against Taliyah is 56.49%.