

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: 6,695,953
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 15.16 is the strongest counter to middle champions of Taliyah, Kassadin & Azir. While Senna support is countered most by middle champions of Teemo, Vel'Koz & Swain. Below is a detailed breakdown of Senna support counters against middle champions with a minimum of 100 games.


Teemo
el Explorador Veloz
Senna wins against Teemo 34.11% of the time which is 18.49% lower against Teemo than the average opponent.
After normalising both champions win rates Senna wins against Teemo 7.91% less often than would be expected.
The average opponent winrate against Teemo is 52.60%.


Vel'Koz
el Ojo del Vacío
Senna wins against Vel'Koz 35.04% of the time which is 18.49% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Senna wins against Vel'Koz 7.91% less often than would be expected.
The average opponent winrate against Vel'Koz is 53.53%.


Swain
el Gran General Noxiano
Senna wins against Swain 36.21% of the time which is 15.25% lower against Swain than the average opponent.
After normalising both champions win rates Senna wins against Swain 4.67% less often than would be expected.
The average opponent winrate against Swain is 51.46%.


Irelia
la Cuchilla Danzante
Senna wins against Irelia 38.38% of the time which is 16.32% lower against Irelia than the average opponent.
After normalising both champions win rates Senna wins against Irelia 5.74% less often than would be expected.
The average opponent winrate against Irelia is 54.70%.


Aurelion Sol
el Forjador de Estrellas
Senna wins against Aurelion Sol 38.44% of the time which is 14.97% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 4.39% less often than would be expected.
The average opponent winrate against Aurelion Sol is 53.41%.


Akshan
el Centinela Rebelde
Senna wins against Akshan 39.10% of the time which is 17.15% lower against Akshan than the average opponent.
After normalising both champions win rates Senna wins against Akshan 6.59% less often than would be expected.
The average opponent winrate against Akshan is 56.25%.


Viktor
El Heraldo de lo Arcano
Senna wins against Viktor 39.33% of the time which is 15.11% lower against Viktor than the average opponent.
After normalising both champions win rates Senna wins against Viktor 4.53% less often than would be expected.
The average opponent winrate against Viktor is 54.44%.


Veigar
el Pequeño Maestro del Mal
Senna wins against Veigar 39.68% of the time which is 12.28% lower against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 1.70% less often than would be expected.
The average opponent winrate against Veigar is 51.96%.


Anivia
la Criofénix
Senna wins against Anivia 39.85% of the time which is 14.30% lower against Anivia than the average opponent.
After normalising both champions win rates Senna wins against Anivia 3.72% less often than would be expected.
The average opponent winrate against Anivia is 54.15%.


Hwei
el Visionario
Senna wins against Hwei 40.17% of the time which is 14.50% lower against Hwei than the average opponent.
After normalising both champions win rates Senna wins against Hwei 3.92% less often than would be expected.
The average opponent winrate against Hwei is 54.67%.


Malphite
el Fragmento del Monolito
Senna wins against Malphite 40.36% of the time which is 12.34% lower against Malphite than the average opponent.
After normalising both champions win rates Senna wins against Malphite 1.76% less often than would be expected.
The average opponent winrate against Malphite is 52.70%.


Brand
la Venganza Ardiente
Senna wins against Brand 40.79% of the time which is 11.30% lower against Brand than the average opponent.
After normalising both champions win rates Senna wins against Brand 0.72% less often than would be expected.
The average opponent winrate against Brand is 52.09%.


Yasuo
el Imperdonable
Senna wins against Yasuo 40.99% of the time which is 12.16% lower against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 1.57% less often than would be expected.
The average opponent winrate against Yasuo is 53.15%.


Fizz
el Bromista de las Mareas
Senna wins against Fizz 41.22% of the time which is 12.56% lower against Fizz than the average opponent.
After normalising both champions win rates Senna wins against Fizz 1.98% less often than would be expected.
The average opponent winrate against Fizz is 53.78%.


Heimerdinger
el Venerable Inventor
Senna wins against Heimerdinger 41.30% of the time which is 9.22% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Senna wins against Heimerdinger 1.35% more often than would be expected.
The average opponent winrate against Heimerdinger is 50.52%.


Morgana
la Desolada
Senna wins against Morgana 41.33% of the time which is 10.36% lower against Morgana than the average opponent.
After normalising both champions win rates Senna wins against Morgana 0.22% more often than would be expected.
The average opponent winrate against Morgana is 51.69%.


Ryze
el Mago Rúnico
Senna wins against Ryze 41.37% of the time which is 13.16% lower against Ryze than the average opponent.
After normalising both champions win rates Senna wins against Ryze 2.58% less often than would be expected.
The average opponent winrate against Ryze is 54.53%.


Talon
la Sombra de la Navaja
Senna wins against Talon 41.44% of the time which is 13.72% lower against Talon than the average opponent.
After normalising both champions win rates Senna wins against Talon 3.15% less often than would be expected.
The average opponent winrate against Talon is 55.16%.


Naafiri
la Sabueso de las Cien Mordidas
Senna wins against Naafiri 42.13% of the time which is 9.77% lower against Naafiri than the average opponent.
After normalising both champions win rates Senna wins against Naafiri 0.81% more often than would be expected.
The average opponent winrate against Naafiri is 51.90%.


Katarina
la Daga Siniestra
Senna wins against Katarina 42.16% of the time which is 14.28% lower against Katarina than the average opponent.
After normalising both champions win rates Senna wins against Katarina 3.72% less often than would be expected.
The average opponent winrate against Katarina is 56.44%.


Lux
la Dama Luminosa
Senna wins against Lux 42.25% of the time which is 9.85% lower against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 0.73% more often than would be expected.
The average opponent winrate against Lux is 52.10%.


Xerath
el Mago Ascendente
Senna wins against Xerath 42.35% of the time which is 9.93% lower against Xerath than the average opponent.
After normalising both champions win rates Senna wins against Xerath 0.65% more often than would be expected.
The average opponent winrate against Xerath is 52.28%.


Malzahar
el Profeta del Vacío
Senna wins against Malzahar 42.42% of the time which is 8.99% lower against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 1.59% more often than would be expected.
The average opponent winrate against Malzahar is 51.41%.


Akali
la Asesina Furtiva
Senna wins against Akali 42.54% of the time which is 11.56% lower against Akali than the average opponent.
After normalising both champions win rates Senna wins against Akali 0.98% less often than would be expected.
The average opponent winrate against Akali is 54.10%.


Diana
el Desdén de la Luna
Senna wins against Diana 42.99% of the time which is 10.30% lower against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 0.29% more often than would be expected.
The average opponent winrate against Diana is 53.29%.


Galio
el Coloso
Senna wins against Galio 43.06% of the time which is 9.02% lower against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 1.56% more often than would be expected.
The average opponent winrate against Galio is 52.08%.


Pantheon
la Lanza Inquebrantable
Senna wins against Pantheon 43.11% of the time which is 9.79% lower against Pantheon than the average opponent.
After normalising both champions win rates Senna wins against Pantheon 0.79% more often than would be expected.
The average opponent winrate against Pantheon is 52.90%.


Ziggs
el Experto en Hexplosivos
Senna wins against Ziggs 43.40% of the time which is 9.53% lower against Ziggs than the average opponent.
After normalising both champions win rates Senna wins against Ziggs 1.05% more often than would be expected.
The average opponent winrate against Ziggs is 52.93%.


Cassiopeia
el Abrazo de la Serpiente
Senna wins against Cassiopeia 43.53% of the time which is 11.83% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Senna wins against Cassiopeia 1.26% less often than would be expected.
The average opponent winrate against Cassiopeia is 55.36%.


Lissandra
la Bruja de Hielo
Senna wins against Lissandra 43.75% of the time which is 10.01% lower against Lissandra than the average opponent.
After normalising both champions win rates Senna wins against Lissandra 0.57% more often than would be expected.
The average opponent winrate against Lissandra is 53.76%.


Tristana
la Artillera Yordle
Senna wins against Tristana 44.12% of the time which is 12.70% lower against Tristana than the average opponent.
After normalising both champions win rates Senna wins against Tristana 2.15% less often than would be expected.
The average opponent winrate against Tristana is 56.82%.


Zoe
el Aspecto del Crepúsculo
Senna wins against Zoe 44.24% of the time which is 12.21% lower against Zoe than the average opponent.
After normalising both champions win rates Senna wins against Zoe 1.65% less often than would be expected.
The average opponent winrate against Zoe is 56.45%.


Yone
el Imborrable
Senna wins against Yone 44.91% of the time which is 10.00% lower against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 0.58% more often than would be expected.
The average opponent winrate against Yone is 54.91%.


Annie
la Hija de la Oscuridad
Senna wins against Annie 45.04% of the time which is 10.18% lower against Annie than the average opponent.
After normalising both champions win rates Senna wins against Annie 0.39% more often than would be expected.
The average opponent winrate against Annie is 55.22%.


Ekko
el Joven que Fragmentó el Tiempo
Senna wins against Ekko 45.15% of the time which is 7.73% lower against Ekko than the average opponent.
After normalising both champions win rates Senna wins against Ekko 2.85% more often than would be expected.
The average opponent winrate against Ekko is 52.88%.


Neeko
la Camaleón Curiosa
Senna wins against Neeko 45.20% of the time which is 8.34% lower against Neeko than the average opponent.
After normalising both champions win rates Senna wins against Neeko 2.24% more often than would be expected.
The average opponent winrate against Neeko is 53.54%.


Smolder
el Dragoncito Flamante
Senna wins against Smolder 45.22% of the time which is 10.86% lower against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 0.30% less often than would be expected.
The average opponent winrate against Smolder is 56.08%.


Twisted Fate
el Maestro de las Cartas
Senna wins against Twisted Fate 45.39% of the time which is 11.43% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Senna wins against Twisted Fate 0.88% less often than would be expected.
The average opponent winrate against Twisted Fate is 56.82%.


Ahri
la Vastaya de Nueve Colas
Senna wins against Ahri 45.61% of the time which is 9.26% lower against Ahri than the average opponent.
After normalising both champions win rates Senna wins against Ahri 1.32% more often than would be expected.
The average opponent winrate against Ahri is 54.87%.


Orianna
la Doncella Mecánica
Senna wins against Orianna 45.76% of the time which is 9.18% lower against Orianna than the average opponent.
After normalising both champions win rates Senna wins against Orianna 1.40% more often than would be expected.
The average opponent winrate against Orianna is 54.94%.


Vex
la Tristóloga
Senna wins against Vex 45.84% of the time which is 8.24% lower against Vex than the average opponent.
After normalising both champions win rates Senna wins against Vex 2.34% more often than would be expected.
The average opponent winrate against Vex is 54.08%.


Vladimir
el Segador Carmesí
Senna wins against Vladimir 45.99% of the time which is 8.91% lower against Vladimir than the average opponent.
After normalising both champions win rates Senna wins against Vladimir 1.67% more often than would be expected.
The average opponent winrate against Vladimir is 54.90%.


LeBlanc
la Maquiavélica
Senna wins against LeBlanc 46.57% of the time which is 8.77% lower against LeBlanc than the average opponent.
After normalising both champions win rates Senna wins against LeBlanc 1.80% more often than would be expected.
The average opponent winrate against LeBlanc is 55.34%.


Aurora
la Bruja entre Mundos
Senna wins against Aurora 46.93% of the time which is 8.87% lower against Aurora than the average opponent.
After normalising both champions win rates Senna wins against Aurora 1.70% more often than would be expected.
The average opponent winrate against Aurora is 55.80%.


Qiyana
La Emperatriz de los Elementos
Senna wins against Qiyana 48.06% of the time which is 10.99% lower against Qiyana than the average opponent.
After normalising both champions win rates Senna wins against Qiyana 0.49% less often than would be expected.
The average opponent winrate against Qiyana is 59.05%.


Sylas
el Usurpador
Senna wins against Sylas 48.33% of the time which is 7.55% lower against Sylas than the average opponent.
After normalising both champions win rates Senna wins against Sylas 3.02% more often than would be expected.
The average opponent winrate against Sylas is 55.88%.


Zed
el Maestro de las Sombras
Senna wins against Zed 48.44% of the time which is 8.01% 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 56.45%.


Syndra
la Soberana Oscura
Senna wins against Syndra 48.91% of the time which is 6.16% lower against Syndra than the average opponent.
After normalising both champions win rates Senna wins against Syndra 4.42% more often than would be expected.
The average opponent winrate against Syndra is 55.07%.


Mel
el Reflejo del Alma
Senna wins against Mel 49.61% of the time which is 5.14% lower against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 5.44% more often than would be expected.
The average opponent winrate against Mel is 54.75%.


Azir
el Emperador de las Arenas
Senna wins against Azir 51.46% of the time which is 6.38% lower against Azir than the average opponent.
After normalising both champions win rates Senna wins against Azir 4.15% more often than would be expected.
The average opponent winrate against Azir is 57.84%.


Kassadin
el Caminante del Vacío
Senna wins against Kassadin 53.41% of the time which is 2.02% lower against Kassadin than the average opponent.
After normalising both champions win rates Senna wins against Kassadin 8.55% more often than would be expected.
The average opponent winrate against Kassadin is 55.43%.


Taliyah
la Tejedora de Piedra
Senna wins against Taliyah 54.72% of the time which is 4.24% lower against Taliyah than the average opponent.
After normalising both champions win rates Senna wins against Taliyah 6.26% more often than would be expected.
The average opponent winrate against Taliyah is 58.96%.