

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: 3,170,153
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 15.17 is the strongest counter to bottom champions of Varus, Ezreal & Vayne. While Senna bottom is countered most by bottom champions of Smolder, Sivir & Ashe. Below is a detailed breakdown of Senna bottom counters against bottom champions with a minimum of 100 games.


Smolder
Ognisty Podlotek
Senna wins against Smolder 41.30% of the time which is 9.38% lower against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 5.88% less often than would be expected.
The average opponent winrate against Smolder is 50.68%.


Sivir
Pani Wojny
Senna wins against Sivir 44.72% of the time which is 6.12% lower against Sivir than the average opponent.
After normalising both champions win rates Senna wins against Sivir 2.62% less often than would be expected.
The average opponent winrate against Sivir is 50.84%.


Ashe
Lodowa Łuczniczka
Senna wins against Ashe 45.25% of the time which is 6.90% lower against Ashe than the average opponent.
After normalising both champions win rates Senna wins against Ashe 3.40% less often than would be expected.
The average opponent winrate against Ashe is 52.15%.


Yunara
Niezłomna Wiara
Senna wins against Yunara 45.59% of the time which is 6.57% lower against Yunara than the average opponent.
After normalising both champions win rates Senna wins against Yunara 3.07% less often than would be expected.
The average opponent winrate against Yunara is 52.16%.


Miss Fortune
Łowczyni Nagród
Senna wins against Miss Fortune 46.02% of the time which is 4.24% lower against Miss Fortune than the average opponent.
After normalising both champions win rates Senna wins against Miss Fortune 0.74% less often than would be expected.
The average opponent winrate against Miss Fortune is 50.26%.


Jinx
Wystrzałowa Wariatka
Senna wins against Jinx 46.12% of the time which is 6.03% lower against Jinx than the average opponent.
After normalising both champions win rates Senna wins against Jinx 2.53% less often than would be expected.
The average opponent winrate against Jinx is 52.15%.


Tristana
Dumna Kanonierka
Senna wins against Tristana 46.70% of the time which is 7.05% lower against Tristana than the average opponent.
After normalising both champions win rates Senna wins against Tristana 3.55% less often than would be expected.
The average opponent winrate against Tristana is 53.75%.


Samira
Róża Pustyni
Senna wins against Samira 48.60% of the time which is 3.48% lower against Samira than the average opponent.
After normalising both champions win rates Senna wins against Samira 0.02% more often than would be expected.
The average opponent winrate against Samira is 52.08%.


Lucian
Kleryk Broni
Senna wins against Lucian 49.32% of the time which is 5.24% lower against Lucian than the average opponent.
After normalising both champions win rates Senna wins against Lucian 1.75% less often than would be expected.
The average opponent winrate against Lucian is 54.56%.


Jhin
Wirtuoz
Senna wins against Jhin 49.76% of the time which is 2.38% lower against Jhin than the average opponent.
After normalising both champions win rates Senna wins against Jhin 1.12% more often than would be expected.
The average opponent winrate against Jhin is 52.14%.


Kai'Sa
Córa Pustki
Senna wins against Kai'Sa 49.85% of the time which is 2.22% lower against Kai'Sa than the average opponent.
After normalising both champions win rates Senna wins against Kai'Sa 1.28% more often than would be expected.
The average opponent winrate against Kai'Sa is 52.07%.


Aphelios
Broń Wiernych
Senna wins against Aphelios 50.83% of the time which is 0.48% lower against Aphelios than the average opponent.
After normalising both champions win rates Senna wins against Aphelios 3.02% more often than would be expected.
The average opponent winrate against Aphelios is 51.31%.


Caitlyn
Szeryf Piltover
Senna wins against Caitlyn 51.82% of the time which is 1.01% lower against Caitlyn than the average opponent.
After normalising both champions win rates Senna wins against Caitlyn 2.49% more often than would be expected.
The average opponent winrate against Caitlyn is 52.83%.


Twitch
Szczur Zarazy
Senna wins against Twitch 52.00% of the time which is 0.72% lower against Twitch than the average opponent.
After normalising both champions win rates Senna wins against Twitch 2.78% more often than would be expected.
The average opponent winrate against Twitch is 52.72%.


Vayne
Nocna Łowczyni
Senna wins against Vayne 52.88% of the time which is 0.63% higher against Vayne than the average opponent.
After normalising both champions win rates Senna wins against Vayne 4.13% more often than would be expected.
The average opponent winrate against Vayne is 52.25%.


Ezreal
Odkrywca z Powołania
Senna wins against Ezreal 53.42% of the time which is 1.59% lower against Ezreal than the average opponent.
After normalising both champions win rates Senna wins against Ezreal 1.90% more often than would be expected.
The average opponent winrate against Ezreal is 55.01%.


Varus
Strzała Odkupienia
Senna wins against Varus 55.70% of the time which is 0.71% higher against Varus than the average opponent.
After normalising both champions win rates Senna wins against Varus 4.20% more often than would be expected.
The average opponent winrate against Varus is 54.99%.