

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.
Master Champions Analysed: 1,048,649
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 jungle vs jungle Counters
Presently there is insufficent games played by Karthus jungle on Patch 15.15 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.


Viego
The Ruined King
Karthus wins against Viego 44.80% of the time which is 5.34% lower against Viego than the average opponent.
After normalising both champions win rates Karthus wins against Viego 4.85% less often than would be expected.
The average opponent winrate against Viego is 50.14%.


Jarvan IV
the Exemplar of Demacia
Karthus wins against Jarvan IV 49.51% of the time which is 0.25% lower against Jarvan IV than the average opponent.
After normalising both champions win rates Karthus wins against Jarvan IV 0.24% more often than would be expected.
The average opponent winrate against Jarvan IV is 49.76%.


Zed
the Master of Shadows
Karthus wins against Zed 52.21% of the time which is 1.19% lower against Zed than the average opponent.
After normalising both champions win rates Karthus wins against Zed 0.70% less often than would be expected.
The average opponent winrate against Zed is 53.40%.


Lee Sin
the Blind Monk
Karthus wins against Lee Sin 53.41% of the time which is 3.01% higher against Lee Sin than the average opponent.
After normalising both champions win rates Karthus wins against Lee Sin 3.50% more often than would be expected.
The average opponent winrate against Lee Sin is 50.40%.


Nidalee
the Bestial Huntress
Karthus wins against Nidalee 54.00% of the time which is 5.92% higher against Nidalee than the average opponent.
After normalising both champions win rates Karthus wins against Nidalee 6.41% more often than would be expected.
The average opponent winrate against Nidalee is 48.08%.