

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: 13,020,334
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 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 44.35% of the time which is 6.33% lower against Viego than the average opponent.
After normalising both champions win rates Karthus wins against Viego 2.81% less often than would be expected.
The average opponent winrate against Viego is 50.68%.


Lee Sin
the Blind Monk
Karthus wins against Lee Sin 49.15% of the time which is 1.80% lower against Lee Sin than the average opponent.
After normalising both champions win rates Karthus wins against Lee Sin 1.72% more often than would be expected.
The average opponent winrate against Lee Sin is 50.95%.


Kha'Zix
the Voidreaver
Karthus wins against Kha'Zix 51.85% of the time which is 2.38% higher against Kha'Zix than the average opponent.
After normalising both champions win rates Karthus wins against Kha'Zix 5.90% more often than would be expected.
The average opponent winrate against Kha'Zix is 49.47%.