

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.
Platinum+ Champions Analysed: 21,406,406
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.


Karthus Counters
Karthus bottom vs support Counters
Karthus bottom on Patch 15.9 is the strongest counter to support champions of Alistar, Senna & Vel'Koz. While Karthus bottom is countered most by support champions of Zilean, Pantheon & Fiddlesticks. Below is a detailed breakdown of Karthus bottom counters against support champions with a minimum of 100 games.


Zilean
Gardien du Temps
Karthus wins against Zilean 35.00% of the time which is 12.85% lower against Zilean than the average opponent.
After normalising both champions win rates Karthus wins against Zilean 16.77% less often than would be expected.
The average opponent winrate against Zilean is 47.85%.


Pantheon
Lance éternelle
Karthus wins against Pantheon 45.83% of the time which is 3.81% lower against Pantheon than the average opponent.
After normalising both champions win rates Karthus wins against Pantheon 7.73% less often than would be expected.
The average opponent winrate against Pantheon is 49.64%.


Fiddlesticks
Effroi nocturne
Karthus wins against Fiddlesticks 47.78% of the time which is 1.77% higher against Fiddlesticks than the average opponent.
After normalising both champions win rates Karthus wins against Fiddlesticks 2.15% less often than would be expected.
The average opponent winrate against Fiddlesticks is 46.01%.


Nami
Aquamancienne
Karthus wins against Nami 48.35% of the time which is 0.76% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 3.16% less often than would be expected.
The average opponent winrate against Nami is 47.59%.


Janna
Avatar de l'air
Karthus wins against Janna 48.45% of the time which is 0.29% higher against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 3.63% less often than would be expected.
The average opponent winrate against Janna is 48.16%.


Karma
Sagesse incarnée
Karthus wins against Karma 49.53% of the time which is 0.84% lower against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 4.76% less often than would be expected.
The average opponent winrate against Karma is 50.37%.


Rell
Vierge de fer
Karthus wins against Rell 49.77% of the time which is 1.22% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 2.70% less often than would be expected.
The average opponent winrate against Rell is 48.55%.


Séraphine
Chanteuse rêveuse
Karthus wins against Séraphine 50.38% of the time which is 0.55% higher against Séraphine than the average opponent.
After normalising both champions win rates Karthus wins against Séraphine 3.37% less often than would be expected.
The average opponent winrate against Séraphine is 49.83%.


Milio
Douce flamme
Karthus wins against Milio 51.15% of the time which is 3.83% higher against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 0.09% less often than would be expected.
The average opponent winrate against Milio is 47.32%.


Bard
Gardien errant
Karthus wins against Bard 51.60% of the time which is 2.56% higher against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 1.36% less often than would be expected.
The average opponent winrate against Bard is 49.04%.


Leona
Aube radieuse
Karthus wins against Leona 51.71% of the time which is 3.30% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 0.62% less often than would be expected.
The average opponent winrate against Leona is 48.41%.


Soraka
Enfant des étoiles
Karthus wins against Soraka 51.79% of the time which is 3.70% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 0.22% less often than would be expected.
The average opponent winrate against Soraka is 48.09%.


Blitzcrank
Golem de vapeur
Karthus wins against Blitzcrank 52.60% of the time which is 2.59% higher against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 1.33% less often than would be expected.
The average opponent winrate against Blitzcrank is 50.01%.


Lulu
Sorcière féérique
Karthus wins against Lulu 52.75% of the time which is 4.70% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 0.78% more often than would be expected.
The average opponent winrate against Lulu is 48.05%.


Sona
Virtuose de la harpe
Karthus wins against Sona 52.75% of the time which is 5.38% higher against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 1.46% more often than would be expected.
The average opponent winrate against Sona is 47.37%.


Rakan
Charmeur
Karthus wins against Rakan 53.23% of the time which is 3.45% higher against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 0.47% less often than would be expected.
The average opponent winrate against Rakan is 49.78%.


Pyke
Éventreur des abysses
Karthus wins against Pyke 54.59% of the time which is 4.12% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 0.20% more often than would be expected.
The average opponent winrate against Pyke is 50.47%.


Nautilus
Titan des profondeurs
Karthus wins against Nautilus 55.14% of the time which is 4.76% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 0.84% more often than would be expected.
The average opponent winrate against Nautilus is 50.38%.


Zyra
Dame aux ronces
Karthus wins against Zyra 55.65% of the time which is 6.75% higher against Zyra than the average opponent.
After normalising both champions win rates Karthus wins against Zyra 2.83% more often than would be expected.
The average opponent winrate against Zyra is 48.90%.


Braum
Cœur de Freljord
Karthus wins against Braum 56.14% of the time which is 8.82% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 4.90% more often than would be expected.
The average opponent winrate against Braum is 47.32%.


Yuumi
Gardienne du Grimoire
Karthus wins against Yuumi 56.20% of the time which is 6.45% higher against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 2.53% more often than would be expected.
The average opponent winrate against Yuumi is 49.75%.


Morgana
Déchue
Karthus wins against Morgana 56.58% of the time which is 7.77% higher against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 3.85% more often than would be expected.
The average opponent winrate against Morgana is 48.81%.


Lux
Dame de lumière
Karthus wins against Lux 57.00% of the time which is 5.94% higher against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 2.03% more often than would be expected.
The average opponent winrate against Lux is 51.06%.


Thresh
Garde aux chaînes
Karthus wins against Thresh 57.24% of the time which is 8.32% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 4.40% more often than would be expected.
The average opponent winrate against Thresh is 48.92%.


Vel'Koz
Œil du Néant
Karthus wins against Vel'Koz 57.26% of the time which is 8.37% higher against Vel'Koz than the average opponent.
After normalising both champions win rates Karthus wins against Vel'Koz 4.45% more often than would be expected.
The average opponent winrate against Vel'Koz is 48.89%.


Senna
Rédemptrice
Karthus wins against Senna 58.38% of the time which is 8.07% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 4.15% more often than would be expected.
The average opponent winrate against Senna is 50.31%.


Alistar
Minotaure
Karthus wins against Alistar 58.95% of the time which is 9.49% higher against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 5.57% more often than would be expected.
The average opponent winrate against Alistar is 49.46%.