

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: 6,421,511
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 Corki, Zeri & Ezreal. While Senna bottom is countered most by bottom champions of Veigar, Swain & Sivir. Below is a detailed breakdown of Senna bottom counters against bottom champions with a minimum of 100 games.


Veigar
el Pequeño Maestro del Mal
Senna wins against Veigar 39.33% of the time which is 9.99% lower against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 7.00% less often than would be expected.
The average opponent winrate against Veigar is 49.32%.


Swain
el Gran General Noxiano
Senna wins against Swain 42.72% of the time which is 6.62% lower against Swain than the average opponent.
After normalising both champions win rates Senna wins against Swain 3.63% less often than would be expected.
The average opponent winrate against Swain is 49.34%.


Sivir
la Señora de la Batalla
Senna wins against Sivir 46.81% of the time which is 4.30% lower against Sivir than the average opponent.
After normalising both champions win rates Senna wins against Sivir 1.31% less often than would be expected.
The average opponent winrate against Sivir is 51.11%.


Aphelios
El Arma de los Adeptos
Senna wins against Aphelios 47.09% of the time which is 5.75% lower against Aphelios than the average opponent.
After normalising both champions win rates Senna wins against Aphelios 2.76% less often than would be expected.
The average opponent winrate against Aphelios is 52.84%.


Smolder
el Dragoncito Flamante
Senna wins against Smolder 47.62% of the time which is 2.99% lower against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 0.00% less often than would be expected.
The average opponent winrate against Smolder is 50.61%.


Jinx
la Bala Perdida
Senna wins against Jinx 48.15% of the time which is 3.58% lower against Jinx than the average opponent.
After normalising both champions win rates Senna wins against Jinx 0.59% less often than would be expected.
The average opponent winrate against Jinx is 51.73%.


Miss Fortune
la Cazarrecompensas
Senna wins against Miss Fortune 48.16% of the time which is 2.40% lower against Miss Fortune than the average opponent.
After normalising both champions win rates Senna wins against Miss Fortune 0.59% more often than would be expected.
The average opponent winrate against Miss Fortune is 50.56%.


Caitlyn
la Sheriff de Piltóver
Senna wins against Caitlyn 48.70% of the time which is 3.70% lower against Caitlyn than the average opponent.
After normalising both champions win rates Senna wins against Caitlyn 0.71% less often than would be expected.
The average opponent winrate against Caitlyn is 52.40%.


Jhin
el Virtuoso
Senna wins against Jhin 48.80% of the time which is 2.92% lower against Jhin than the average opponent.
After normalising both champions win rates Senna wins against Jhin 0.07% more often than would be expected.
The average opponent winrate against Jhin is 51.72%.


Kai'Sa
La Hija del Vacío
Senna wins against Kai'Sa 48.93% of the time which is 4.52% lower against Kai'Sa than the average opponent.
After normalising both champions win rates Senna wins against Kai'Sa 1.53% less often than would be expected.
The average opponent winrate against Kai'Sa is 53.45%.


Vayne
la Cazadora Nocturna
Senna wins against Vayne 49.00% of the time which is 3.44% lower against Vayne than the average opponent.
After normalising both champions win rates Senna wins against Vayne 0.45% less often than would be expected.
The average opponent winrate against Vayne is 52.44%.


Nilah
la Alegría Desatada
Senna wins against Nilah 49.17% of the time which is 0.48% lower against Nilah than the average opponent.
After normalising both champions win rates Senna wins against Nilah 2.51% more often than would be expected.
The average opponent winrate against Nilah is 49.65%.


Kalista
el Espíritu de la Venganza
Senna wins against Kalista 49.29% of the time which is 6.29% lower against Kalista than the average opponent.
After normalising both champions win rates Senna wins against Kalista 3.31% less often than would be expected.
The average opponent winrate against Kalista is 55.58%.


Ziggs
el Experto en Hexplosivos
Senna wins against Ziggs 49.33% of the time which is 2.29% lower against Ziggs than the average opponent.
After normalising both champions win rates Senna wins against Ziggs 0.70% more often than would be expected.
The average opponent winrate against Ziggs is 51.62%.


Tristana
la Artillera Yordle
Senna wins against Tristana 49.33% of the time which is 3.53% lower against Tristana than the average opponent.
After normalising both champions win rates Senna wins against Tristana 0.54% less often than would be expected.
The average opponent winrate against Tristana is 52.86%.


Draven
el Glorioso Ejecutor
Senna wins against Draven 49.51% of the time which is 5.42% lower against Draven than the average opponent.
After normalising both champions win rates Senna wins against Draven 2.44% less often than would be expected.
The average opponent winrate against Draven is 54.93%.


Samira
la Rosa del Desierto
Senna wins against Samira 49.97% of the time which is 2.60% lower against Samira than the average opponent.
After normalising both champions win rates Senna wins against Samira 0.39% more often than would be expected.
The average opponent winrate against Samira is 52.57%.


Teemo
el Explorador Veloz
Senna wins against Teemo 50.00% of the time which is 0.92% lower against Teemo than the average opponent.
After normalising both champions win rates Senna wins against Teemo 2.07% more often than would be expected.
The average opponent winrate against Teemo is 50.92%.


Ashe
la Arquera de Hielo
Senna wins against Ashe 50.16% of the time which is 2.42% lower against Ashe than the average opponent.
After normalising both champions win rates Senna wins against Ashe 0.57% more often than would be expected.
The average opponent winrate against Ashe is 52.58%.


Xayah
Senna wins against Xayah 50.55% of the time which is 2.13% lower against Xayah than the average opponent.
After normalising both champions win rates Senna wins against Xayah 0.86% more often than would be expected.
The average opponent winrate against Xayah is 52.68%.


Kog'Maw
la Boca del Abismo
Senna wins against Kog'Maw 50.56% of the time which is 0.38% lower against Kog'Maw than the average opponent.
After normalising both champions win rates Senna wins against Kog'Maw 2.61% more often than would be expected.
The average opponent winrate against Kog'Maw is 50.94%.


Twitch
la Rata Mutante
Senna wins against Twitch 50.57% of the time which is 2.19% lower against Twitch than the average opponent.
After normalising both champions win rates Senna wins against Twitch 0.80% more often than would be expected.
The average opponent winrate against Twitch is 52.76%.


Yasuo
el Imperdonable
Senna wins against Yasuo 50.60% of the time which is 0.23% higher against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 3.22% more often than would be expected.
The average opponent winrate against Yasuo is 50.37%.


Lucian
el Purificador
Senna wins against Lucian 50.67% of the time which is 3.03% lower against Lucian than the average opponent.
After normalising both champions win rates Senna wins against Lucian 0.04% less often than would be expected.
The average opponent winrate against Lucian is 53.70%.


Mel
el Reflejo del Alma
Senna wins against Mel 50.73% of the time which is 3.05% lower 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 53.78%.


Lux
la Dama Luminosa
Senna wins against Lux 50.82% of the time which is 3.76% lower against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 0.77% less often than would be expected.
The average opponent winrate against Lux is 54.58%.


Varus
la Flecha del Castigo
Senna wins against Varus 50.96% of the time which is 3.80% lower against Varus than the average opponent.
After normalising both champions win rates Senna wins against Varus 0.82% less often than would be expected.
The average opponent winrate against Varus is 54.76%.


Ezreal
el Explorador Pródigo
Senna wins against Ezreal 51.00% of the time which is 3.71% lower against Ezreal than the average opponent.
After normalising both champions win rates Senna wins against Ezreal 0.73% less often than would be expected.
The average opponent winrate against Ezreal is 54.71%.


Zeri
La chispa de Zaun
Senna wins against Zeri 51.69% of the time which is 2.71% lower against Zeri than the average opponent.
After normalising both champions win rates Senna wins against Zeri 0.28% more often than would be expected.
The average opponent winrate against Zeri is 54.40%.


Corki
el Bombardero Osado
Senna wins against Corki 56.44% of the time which is 1.19% higher against Corki than the average opponent.
After normalising both champions win rates Senna wins against Corki 4.17% more often than would be expected.
The average opponent winrate against Corki is 55.25%.