

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.
All Ranks Champions Analysed: 17,384,260
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 jungle Counters
Presently there is insufficent games played by Karthus middle on Patch 15.9 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.


Viego
O Rei Destruído
Karthus wins against Viego 48.57% of the time which is 1.49% lower against Viego than the average opponent.
After normalising both champions win rates Karthus wins against Viego 0.37% less often than would be expected.
The average opponent winrate against Viego is 50.06%.


Kayn
o Ceifador das Sombras
Karthus wins against Kayn 48.72% of the time which is 0.13% lower against Kayn than the average opponent.
After normalising both champions win rates Karthus wins against Kayn 0.99% more often than would be expected.
The average opponent winrate against Kayn is 48.85%.


Lee Sin
o Monge Cego
Karthus wins against Lee Sin 56.88% of the time which is 4.66% higher against Lee Sin than the average opponent.
After normalising both champions win rates Karthus wins against Lee Sin 5.78% more often than would be expected.
The average opponent winrate against Lee Sin is 52.22%.