

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.
Silver Champions Analysed: 17,006,316
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 15.16 is the strongest counter to support champions of Nautilus, Lulu & Lux. While Karthus middle is countered most by support champions of Nami, Thresh & Leona. Below is a detailed breakdown of Karthus middle counters against support champions with a minimum of 100 games.


Nami
La Invocadora de Mareas
Karthus wins against Nami 38.32% of the time which is 10.26% lower against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 8.07% less often than would be expected.
The average opponent winrate against Nami is 48.58%.


Thresh
El Carcelero Implacable
Karthus wins against Thresh 40.83% of the time which is 9.81% lower against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 7.62% less often than would be expected.
The average opponent winrate against Thresh is 50.64%.


Leona
El Amanecer Radiante
Karthus wins against Leona 41.38% of the time which is 8.07% lower against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 5.88% less often than would be expected.
The average opponent winrate against Leona is 49.45%.


Morgana
la Caída
Karthus wins against Morgana 43.36% of the time which is 5.02% lower against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 2.83% less often than would be expected.
The average opponent winrate against Morgana is 48.38%.


Lux
La Dama Luminosa
Karthus wins against Lux 45.36% of the time which is 4.01% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.82% less often than would be expected.
The average opponent winrate against Lux is 49.37%.


Lulu
El Hada Hechicera
Karthus wins against Lulu 48.57% of the time which is 2.78% lower against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 0.59% less often than would be expected.
The average opponent winrate against Lulu is 51.35%.


Nautilus
El Titán Abisal
Karthus wins against Nautilus 48.78% of the time which is 2.28% lower against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 0.09% less often than would be expected.
The average opponent winrate against Nautilus is 51.06%.