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: 17,827,020
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 14.20 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.
Kha'Zix
el Saqueador del Vacío
Karthus wins against Kha'Zix 45.61% of the time which is 2.02% lower against Kha'Zix than the average opponent.
After normalising both champions win rates Karthus wins against Kha'Zix 4.03% less often than would be expected.
The average opponent winrate against Kha'Zixis 47.63%.
Lee Sin
el Monje Ciego
Karthus wins against Lee Sin 45.83% of the time which is 3.37% lower against Lee Sin than the average opponent.
After normalising both champions win rates Karthus wins against Lee Sin 5.38% less often than would be expected.
The average opponent winrate against Lee Sinis 49.20%.
Graves
el Forajido
Karthus wins against Graves 48.50% of the time which is 0.15% higher against Graves than the average opponent.
After normalising both champions win rates Karthus wins against Graves 1.86% less often than would be expected.
The average opponent winrate against Gravesis 48.35%.
Viego
El Rey Arruinado
Karthus wins against Viego 50.32% of the time which is 2.14% higher against Viego than the average opponent.
After normalising both champions win rates Karthus wins against Viego 0.13% more often than would be expected.
The average opponent winrate against Viegois 48.18%.