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: 21,733,948
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.

Sion Counters
Sion top vs bottom Counters
Sion top on Patch 30 is the strongest counter to bottom champions of Mel, Corki & Senna. While Sion top is countered most by bottom champions of Swain, Nilah & Sivir. Below is a detailed breakdown of Sion top counters against bottom champions with a minimum of 100 games.
Swain
Grand général noxien
Sion wins against Swain 46.77% of the time which is 0.58% lower against Swain than the average opponent.
After normalising both champions win rates Sion wins against Swain 0.58% less often than would be expected.
The average opponent winrate against Swain is 47.35%.
Nilah
Joie incarnée
Sion wins against Nilah 46.78% of the time which is 1.97% lower against Nilah than the average opponent.
After normalising both champions win rates Sion wins against Nilah 1.97% less often than would be expected.
The average opponent winrate against Nilah is 48.75%.
Sivir
Vierge martiale
Sion wins against Sivir 47.44% of the time which is 2.53% lower against Sivir than the average opponent.
After normalising both champions win rates Sion wins against Sivir 2.53% less often than would be expected.
The average opponent winrate against Sivir is 49.97%.
Yasuo
Disgracié
Sion wins against Yasuo 47.68% of the time which is 2.29% lower against Yasuo than the average opponent.
After normalising both champions win rates Sion wins against Yasuo 2.29% less often than would be expected.
The average opponent winrate against Yasuo is 49.97%.
Kog'Maw
Gueule des abysses
Sion wins against Kog'Maw 47.74% of the time which is 1.42% lower against Kog'Maw than the average opponent.
After normalising both champions win rates Sion wins against Kog'Maw 1.42% less often than would be expected.
The average opponent winrate against Kog'Maw is 49.16%.
Vayne
Chasseresse nocturne
Sion wins against Vayne 47.77% of the time which is 2.52% lower against Vayne than the average opponent.
After normalising both champions win rates Sion wins against Vayne 2.52% less often than would be expected.
The average opponent winrate against Vayne is 50.29%.
Smolder
Dragonnet flamboyant
Sion wins against Smolder 48.32% of the time which is 1.30% lower against Smolder than the average opponent.
After normalising both champions win rates Sion wins against Smolder 1.30% less often than would be expected.
The average opponent winrate against Smolder is 49.62%.
Ziggs
Expert des Hexplosifs
Sion wins against Ziggs 50.00% of the time which is 1.01% higher against Ziggs than the average opponent.
After normalising both champions win rates Sion wins against Ziggs 1.01% more often than would be expected.
The average opponent winrate against Ziggs is 48.99%.
Jinx
Gâchette folle
Sion wins against Jinx 50.09% of the time which is 0.28% lower against Jinx than the average opponent.
After normalising both champions win rates Sion wins against Jinx 0.28% less often than would be expected.
The average opponent winrate against Jinx is 50.37%.
Teemo
Éclaireur de Bandle
Sion wins against Teemo 50.40% of the time which is 0.91% higher against Teemo than the average opponent.
After normalising both champions win rates Sion wins against Teemo 0.91% more often than would be expected.
The average opponent winrate against Teemo is 49.49%.
Séraphine
Chanteuse rêveuse
Sion wins against Séraphine 50.48% of the time which is 2.53% lower against Séraphine than the average opponent.
After normalising both champions win rates Sion wins against Séraphine 2.52% less often than would be expected.
The average opponent winrate against Séraphine is 53.01%.
Jhin
Virtuose
Sion wins against Jhin 50.54% of the time which is 0.18% lower against Jhin than the average opponent.
After normalising both champions win rates Sion wins against Jhin 0.18% less often than would be expected.
The average opponent winrate against Jhin is 50.72%.
Lux
Dame de lumière
Sion wins against Lux 50.62% of the time which is 1.00% lower against Lux than the average opponent.
After normalising both champions win rates Sion wins against Lux 1.00% less often than would be expected.
The average opponent winrate against Lux is 51.62%.
Veigar
Seigneur des maléfices
Sion wins against Veigar 50.66% of the time which is 2.00% higher against Veigar than the average opponent.
After normalising both champions win rates Sion wins against Veigar 2.00% more often than would be expected.
The average opponent winrate against Veigar is 48.66%.
Twitch
Semeur de peste
Sion wins against Twitch 50.71% of the time which is 0.39% lower against Twitch than the average opponent.
After normalising both champions win rates Sion wins against Twitch 0.39% less often than would be expected.
The average opponent winrate against Twitch is 51.10%.
Miss Fortune
Chasseuse de primes
Sion wins against Miss Fortune 50.76% of the time which is 0.75% higher against Miss Fortune than the average opponent.
After normalising both champions win rates Sion wins against Miss Fortune 0.75% more often than would be expected.
The average opponent winrate against Miss Fortune is 50.01%.
Ashe
Archère de givre
Sion wins against Ashe 50.96% of the time which is 0.03% lower against Ashe than the average opponent.
After normalising both champions win rates Sion wins against Ashe 0.03% less often than would be expected.
The average opponent winrate against Ashe is 50.99%.
Draven
Glorieux exécuteur
Sion wins against Draven 51.00% of the time which is 2.44% lower against Draven than the average opponent.
After normalising both champions win rates Sion wins against Draven 2.43% less often than would be expected.
The average opponent winrate against Draven is 53.44%.
Caitlyn
Shérif de Piltover
Sion wins against Caitlyn 51.13% of the time which is 0.28% lower against Caitlyn than the average opponent.
After normalising both champions win rates Sion wins against Caitlyn 0.28% less often than would be expected.
The average opponent winrate against Caitlyn is 51.41%.
Yunara
Foi inébranlable
Sion wins against Yunara 51.37% of the time which is 0.75% lower against Yunara than the average opponent.
After normalising both champions win rates Sion wins against Yunara 0.75% less often than would be expected.
The average opponent winrate against Yunara is 52.12%.
Aphelios
Arme des Lunaris
Sion wins against Aphelios 51.46% of the time which is 0.70% higher against Aphelios than the average opponent.
After normalising both champions win rates Sion wins against Aphelios 0.70% more often than would be expected.
The average opponent winrate against Aphelios is 50.76%.
Samira
Rose du désert
Sion wins against Samira 51.90% of the time which is 1.05% higher against Samira than the average opponent.
After normalising both champions win rates Sion wins against Samira 1.05% more often than would be expected.
The average opponent winrate against Samira is 50.85%.
Zeri
Étincelle de Zaun
Sion wins against Zeri 51.96% of the time which is 0.09% lower against Zeri than the average opponent.
After normalising both champions win rates Sion wins against Zeri 0.09% less often than would be expected.
The average opponent winrate against Zeri is 52.05%.
Xayah
Rebelle
Sion wins against Xayah 52.28% of the time which is 0.33% higher against Xayah than the average opponent.
After normalising both champions win rates Sion wins against Xayah 0.33% more often than would be expected.
The average opponent winrate against Xayah is 51.95%.
Kai'Sa
Fille du Néant
Sion wins against Kai'Sa 52.58% of the time which is 0.89% higher against Kai'Sa than the average opponent.
After normalising both champions win rates Sion wins against Kai'Sa 0.89% more often than would be expected.
The average opponent winrate against Kai'Sa is 51.69%.
Ezreal
Explorateur prodigue
Sion wins against Ezreal 52.64% of the time which is 0.73% lower against Ezreal than the average opponent.
After normalising both champions win rates Sion wins against Ezreal 0.72% less often than would be expected.
The average opponent winrate against Ezreal is 53.37%.
Lucian
Purificateur
Sion wins against Lucian 52.89% of the time which is 0.04% lower against Lucian than the average opponent.
After normalising both champions win rates Sion wins against Lucian 0.03% less often than would be expected.
The average opponent winrate against Lucian is 52.93%.
Kalista
Lance de la vengeance
Sion wins against Kalista 53.24% of the time which is 1.89% lower against Kalista than the average opponent.
After normalising both champions win rates Sion wins against Kalista 1.88% less often than would be expected.
The average opponent winrate against Kalista is 55.13%.
Varus
Flèche de la vengeance
Sion wins against Varus 53.33% of the time which is 0.18% lower against Varus than the average opponent.
After normalising both champions win rates Sion wins against Varus 0.17% less often than would be expected.
The average opponent winrate against Varus is 53.51%.
Tristana
Canonnière yordle
Sion wins against Tristana 53.44% of the time which is 0.87% higher against Tristana than the average opponent.
After normalising both champions win rates Sion wins against Tristana 0.87% more often than would be expected.
The average opponent winrate against Tristana is 52.57%.
Senna
Rédemptrice
Sion wins against Senna 54.01% of the time which is 2.77% higher against Senna than the average opponent.
After normalising both champions win rates Sion wins against Senna 2.77% more often than would be expected.
The average opponent winrate against Senna is 51.24%.
Corki
Artilleur téméraire
Sion wins against Corki 56.59% of the time which is 2.32% higher against Corki than the average opponent.
After normalising both champions win rates Sion wins against Corki 2.33% more often than would be expected.
The average opponent winrate against Corki is 54.27%.
Mel
Reflet de l'âme
Sion wins against Mel 59.45% of the time which is 7.46% higher against Mel than the average opponent.
After normalising both champions win rates Sion wins against Mel 7.46% more often than would be expected.
The average opponent winrate against Mel is 51.99%.
































