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.
Grandmaster Champions Analysed: 537,643
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 30 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.
Viego
regele înfrânt
Karthus wins against Viego 57.14% of the time which is 11.44% higher against Viego than the average opponent.
After normalising both champions win rates Karthus wins against Viego 0.55% more often than would be expected.
The average opponent winrate against Viegois 45.70%.
Graves
proscrisul
Karthus wins against Graves 62.96% of the time which is 18.28% higher against Graves than the average opponent.
After normalising both champions win rates Karthus wins against Graves 7.39% more often than would be expected.
The average opponent winrate against Gravesis 44.68%.
Lee Sin
călugărul orb
Karthus wins against Lee Sin 63.37% of the time which is 17.62% higher against Lee Sin than the average opponent.
After normalising both champions win rates Karthus wins against Lee Sin 6.73% more often than would be expected.
The average opponent winrate against Lee Sinis 45.75%.