

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: 7,132,442
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
Chyży Zwiadowca
Senna wins against Teemo 34.06% of the time which is 18.38% lower against Teemo than the average opponent.
After normalising both champions win rates Senna wins against Teemo 7.65% less often than would be expected.
The average opponent winrate against Teemo is 52.44%.


Vel'Koz
Oko Pustki
Senna wins against Vel'Koz 36.05% of the time which is 17.26% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Senna wins against Vel'Koz 6.52% less often than would be expected.
The average opponent winrate against Vel'Koz is 53.31%.


Swain
Wielki Generał Noxusu
Senna wins against Swain 36.41% of the time which is 14.95% lower against Swain than the average opponent.
After normalising both champions win rates Senna wins against Swain 4.22% less often than would be expected.
The average opponent winrate against Swain is 51.36%.


Irelia
Tańcząca z Ostrzami
Senna wins against Irelia 38.86% of the time which is 15.85% lower against Irelia than the average opponent.
After normalising both champions win rates Senna wins against Irelia 5.12% less often than would be expected.
The average opponent winrate against Irelia is 54.71%.


Morgana
Upadła
Senna wins against Morgana 39.13% of the time which is 12.68% lower against Morgana than the average opponent.
After normalising both champions win rates Senna wins against Morgana 1.95% less often than would be expected.
The average opponent winrate against Morgana is 51.81%.


Akshan
Zbuntowany Strażnik
Senna wins against Akshan 39.22% of the time which is 17.19% lower against Akshan than the average opponent.
After normalising both champions win rates Senna wins against Akshan 6.48% less often than would be expected.
The average opponent winrate against Akshan is 56.41%.


Veigar
Panicz Zła
Senna wins against Veigar 39.83% of the time which is 12.19% 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 52.02%.


Brand
Płomień Zemsty
Senna wins against Brand 39.92% of the time which is 12.26% lower against Brand than the average opponent.
After normalising both champions win rates Senna wins against Brand 1.53% less often than would be expected.
The average opponent winrate against Brand is 52.18%.


Aurelion Sol
Architekt Gwiazd
Senna wins against Aurelion Sol 39.94% of the time which is 13.46% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 2.72% less often than would be expected.
The average opponent winrate against Aurelion Sol is 53.40%.


Viktor
Herold Arcane
Senna wins against Viktor 40.00% of the time which is 14.72% lower against Viktor than the average opponent.
After normalising both champions win rates Senna wins against Viktor 3.99% less often than would be expected.
The average opponent winrate against Viktor is 54.72%.


Hwei
Wizjoner
Senna wins against Hwei 40.53% of the time which is 14.10% lower against Hwei than the average opponent.
After normalising both champions win rates Senna wins against Hwei 3.37% less often than would be expected.
The average opponent winrate against Hwei is 54.63%.


Malphite
Okruch Monolitu
Senna wins against Malphite 40.70% of the time which is 12.21% lower against Malphite than the average opponent.
After normalising both champions win rates Senna wins against Malphite 1.47% less often than would be expected.
The average opponent winrate against Malphite is 52.91%.


Yasuo
Pokutnik
Senna wins against Yasuo 40.72% of the time which is 12.56% lower against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 1.82% less often than would be expected.
The average opponent winrate against Yasuo is 53.28%.


Heimerdinger
Wielbiony Wynalazca
Senna wins against Heimerdinger 40.80% of the time which is 10.01% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Senna wins against Heimerdinger 0.71% more often than would be expected.
The average opponent winrate against Heimerdinger is 50.81%.


Fizz
Szachraj Sztormów
Senna wins against Fizz 40.91% of the time which is 12.91% lower against Fizz than the average opponent.
After normalising both champions win rates Senna wins against Fizz 2.18% less often than would be expected.
The average opponent winrate against Fizz is 53.82%.


Anivia
Kriofeniks
Senna wins against Anivia 40.91% of the time which is 13.40% lower against Anivia than the average opponent.
After normalising both champions win rates Senna wins against Anivia 2.67% less often than would be expected.
The average opponent winrate against Anivia is 54.31%.


Naafiri
Po Stokroć Kąsający Ogar
Senna wins against Naafiri 41.46% of the time which is 10.34% lower against Naafiri than the average opponent.
After normalising both champions win rates Senna wins against Naafiri 0.39% more often than would be expected.
The average opponent winrate against Naafiri is 51.80%.


Ryze
Mag Run
Senna wins against Ryze 41.57% of the time which is 13.04% lower against Ryze than the average opponent.
After normalising both champions win rates Senna wins against Ryze 2.31% less often than would be expected.
The average opponent winrate against Ryze is 54.61%.


Talon
Cień Ostrza
Senna wins against Talon 41.58% of the time which is 13.72% lower against Talon than the average opponent.
After normalising both champions win rates Senna wins against Talon 3.00% less often than would be expected.
The average opponent winrate against Talon is 55.30%.


Katarina
Złowieszcze Ostrze
Senna wins against Katarina 41.64% of the time which is 14.79% lower against Katarina than the average opponent.
After normalising both champions win rates Senna wins against Katarina 4.08% less often than would be expected.
The average opponent winrate against Katarina is 56.43%.


Pantheon
Niezniszczalna Włócznia
Senna wins against Pantheon 41.90% of the time which is 11.13% lower against Pantheon than the average opponent.
After normalising both champions win rates Senna wins against Pantheon 0.39% less often than would be expected.
The average opponent winrate against Pantheon is 53.03%.


Lux
Pani Jasności
Senna wins against Lux 42.15% of the time which is 9.98% lower against Lux than the average opponent.
After normalising both champions win rates Senna wins against Lux 0.75% more often than would be expected.
The average opponent winrate against Lux is 52.13%.


Akali
Skryta Zabójczyni
Senna wins against Akali 42.35% of the time which is 11.88% lower against Akali than the average opponent.
After normalising both champions win rates Senna wins against Akali 1.15% less often than would be expected.
The average opponent winrate against Akali is 54.23%.


Malzahar
Prorok Pustki
Senna wins against Malzahar 42.55% of the time which is 8.90% lower against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 1.83% more often than would be expected.
The average opponent winrate against Malzahar is 51.45%.


Diana
Pogarda Księżyca
Senna wins against Diana 42.86% of the time which is 10.61% lower against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 0.13% more often than would be expected.
The average opponent winrate against Diana is 53.47%.


Galio
Kolos
Senna wins against Galio 42.90% of the time which is 9.29% lower against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 1.44% more often than would be expected.
The average opponent winrate against Galio is 52.19%.


Xerath
Wyniesiony Mag
Senna wins against Xerath 43.53% of the time which is 9.07% lower against Xerath than the average opponent.
After normalising both champions win rates Senna wins against Xerath 1.67% more often than would be expected.
The average opponent winrate against Xerath is 52.60%.


Cassiopeia
Wężowy Uścisk
Senna wins against Cassiopeia 43.82% of the time which is 11.37% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Senna wins against Cassiopeia 0.64% less often than would be expected.
The average opponent winrate against Cassiopeia is 55.19%.


Annie
Dziecko Ciemności
Senna wins against Annie 43.97% of the time which is 11.37% lower against Annie than the average opponent.
After normalising both champions win rates Senna wins against Annie 0.65% less often than would be expected.
The average opponent winrate against Annie is 55.34%.


Lissandra
Wiedźma Lodu
Senna wins against Lissandra 44.29% of the time which is 9.53% lower against Lissandra than the average opponent.
After normalising both champions win rates Senna wins against Lissandra 1.20% more often than would be expected.
The average opponent winrate against Lissandra is 53.82%.


Smolder
Ognisty Podlotek
Senna wins against Smolder 44.35% of the time which is 11.84% lower against Smolder than the average opponent.
After normalising both champions win rates Senna wins against Smolder 1.13% less often than would be expected.
The average opponent winrate against Smolder is 56.19%.


Yone
Wiecznie Żywy
Senna wins against Yone 44.60% of the time which is 10.30% lower against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 0.43% more often than would be expected.
The average opponent winrate against Yone is 54.90%.


Twisted Fate
Mistrz Kart
Senna wins against Twisted Fate 44.81% of the time which is 12.17% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Senna wins against Twisted Fate 1.47% less often than would be expected.
The average opponent winrate against Twisted Fate is 56.98%.


Tristana
Dumna Kanonierka
Senna wins against Tristana 44.86% of the time which is 12.44% lower against Tristana than the average opponent.
After normalising both champions win rates Senna wins against Tristana 1.75% less often than would be expected.
The average opponent winrate against Tristana is 57.30%.


Ekko
Chłopiec, który ujarzmił czas
Senna wins against Ekko 44.92% of the time which is 8.04% lower against Ekko than the average opponent.
After normalising both champions win rates Senna wins against Ekko 2.70% more often than would be expected.
The average opponent winrate against Ekko is 52.96%.


Ziggs
Hextechowy Saper
Senna wins against Ziggs 44.96% of the time which is 7.94% lower against Ziggs than the average opponent.
After normalising both champions win rates Senna wins against Ziggs 2.80% more often than would be expected.
The average opponent winrate against Ziggs is 52.90%.


Zoe
Aspekt Zmierzchu
Senna wins against Zoe 44.97% of the time which is 11.70% lower against Zoe than the average opponent.
After normalising both champions win rates Senna wins against Zoe 1.00% less often than would be expected.
The average opponent winrate against Zoe is 56.67%.


Ahri
Lisica o Dziewięciu Ogonach
Senna wins against Ahri 45.18% of the time which is 9.76% lower against Ahri than the average opponent.
After normalising both champions win rates Senna wins against Ahri 0.97% more often than would be expected.
The average opponent winrate against Ahri is 54.94%.


Orianna
Mechaniczna Baletnica
Senna wins against Orianna 45.87% of the time which is 9.12% lower against Orianna than the average opponent.
After normalising both champions win rates Senna wins against Orianna 1.61% more often than would be expected.
The average opponent winrate against Orianna is 54.99%.


Neeko
Ciekawski Kameleon
Senna wins against Neeko 45.95% of the time which is 7.70% lower against Neeko than the average opponent.
After normalising both champions win rates Senna wins against Neeko 3.04% more often than would be expected.
The average opponent winrate against Neeko is 53.65%.


LeBlanc
Oszustka
Senna wins against LeBlanc 46.03% of the time which is 9.52% lower against LeBlanc than the average opponent.
After normalising both champions win rates Senna wins against LeBlanc 1.20% more often than would be expected.
The average opponent winrate against LeBlanc is 55.55%.


Vex
Ponuraczka
Senna wins against Vex 46.36% of the time which is 7.84% lower against Vex than the average opponent.
After normalising both champions win rates Senna wins against Vex 2.89% more often than would be expected.
The average opponent winrate against Vex is 54.20%.


Vladimir
Krwiożerczy Żniwiarz
Senna wins against Vladimir 46.37% of the time which is 8.84% lower against Vladimir than the average opponent.
After normalising both champions win rates Senna wins against Vladimir 1.89% more often than would be expected.
The average opponent winrate against Vladimir is 55.21%.


Aurora
Wiedźma spomiędzy Światów
Senna wins against Aurora 46.79% of the time which is 9.03% lower against Aurora than the average opponent.
After normalising both champions win rates Senna wins against Aurora 1.69% more often than would be expected.
The average opponent winrate against Aurora is 55.82%.


Sylas
Wyzwolony z Kajdan
Senna wins against Sylas 47.73% of the time which is 8.20% lower against Sylas than the average opponent.
After normalising both champions win rates Senna wins against Sylas 2.52% more often than would be expected.
The average opponent winrate against Sylas is 55.93%.


Zed
Władca Cieni
Senna wins against Zed 47.96% of the time which is 8.66% lower against Zed than the average opponent.
After normalising both champions win rates Senna wins against Zed 2.05% more often than would be expected.
The average opponent winrate against Zed is 56.62%.


Mel
Odbicie Duszy
Senna wins against Mel 48.09% of the time which is 6.75% lower against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 3.98% more often than would be expected.
The average opponent winrate against Mel is 54.84%.


Syndra
Mroczna Władczyni
Senna wins against Syndra 48.33% of the time which is 6.88% lower against Syndra than the average opponent.
After normalising both champions win rates Senna wins against Syndra 3.85% more often than would be expected.
The average opponent winrate against Syndra is 55.21%.


Qiyana
Cesarzowa Żywiołów
Senna wins against Qiyana 48.65% of the time which is 10.49% lower against Qiyana than the average opponent.
After normalising both champions win rates Senna wins against Qiyana 0.15% more often than would be expected.
The average opponent winrate against Qiyana is 59.14%.


Azir
Imperator Pustyni
Senna wins against Azir 50.75% of the time which is 7.16% lower against Azir than the average opponent.
After normalising both champions win rates Senna wins against Azir 3.52% more often than would be expected.
The average opponent winrate against Azir is 57.91%.


Kassadin
Wędrowiec Pustki
Senna wins against Kassadin 53.19% of the time which is 2.02% lower against Kassadin than the average opponent.
After normalising both champions win rates Senna wins against Kassadin 8.71% more often than would be expected.
The average opponent winrate against Kassadin is 55.21%.


Taliyah
Tkaczka Skał
Senna wins against Taliyah 55.36% of the time which is 3.66% lower against Taliyah than the average opponent.
After normalising both champions win rates Senna wins against Taliyah 6.99% more often than would be expected.
The average opponent winrate against Taliyah is 59.02%.