

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.
Emerald+ Champions Analysed: 26,112,804
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 middle vs support Counters
Karthus middle on Patch 14.23 is the strongest counter to support champions of Senna, Nautilus & Pyke. While Karthus middle is countered most by support champions of Karma, Nami & Thresh. Below is a detailed breakdown of Karthus middle counters against support champions with a minimum of 100 games.


Karma
Sagesse incarnée
Karthus wins against Karma 42.86% of the time which is 4.97% lower against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 5.14% less often than would be expected.
The average opponent winrate against Karma is 47.83%.


Nami
Aquamancienne
Karthus wins against Nami 46.07% of the time which is 0.72% lower against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 0.89% less often than would be expected.
The average opponent winrate against Nami is 46.79%.


Thresh
Garde aux chaînes
Karthus wins against Thresh 47.18% of the time which is 0.85% lower against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 1.02% less often than would be expected.
The average opponent winrate against Thresh is 48.03%.


Lulu
Sorcière féérique
Karthus wins against Lulu 47.83% of the time which is 0.64% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 0.47% more often than would be expected.
The average opponent winrate against Lulu is 47.19%.


Pyke
Éventreur des abysses
Karthus wins against Pyke 50.36% of the time which is 1.63% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 1.47% more often than would be expected.
The average opponent winrate against Pyke is 48.73%.


Nautilus
Titan des profondeurs
Karthus wins against Nautilus 53.28% of the time which is 3.84% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 3.68% more often than would be expected.
The average opponent winrate against Nautilus is 49.44%.


Senna
Rédemptrice
Karthus wins against Senna 54.37% of the time which is 7.24% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 7.07% more often than would be expected.
The average opponent winrate against Senna is 47.13%.