

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.
Platinum+ Champions Analysed: 7,990,508
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 bottom vs middle Counters
Presently there is insufficent games played by Karthus bottom on Patch 15.17 to determine the strongest middle counters. A matchup requires a minimum of 100 games to be displayed.


Galio
el Coloso
Karthus wins against Galio 45.00% of the time which is 3.63% lower against Galio than the average opponent.
After normalising both champions win rates Karthus wins against Galio 6.29% less often than would be expected.
The average opponent winrate against Galio is 48.63%.


Zed
El Maestro de las Sombras
Karthus wins against Zed 51.15% of the time which is 0.96% higher against Zed than the average opponent.
After normalising both champions win rates Karthus wins against Zed 1.70% less often than would be expected.
The average opponent winrate against Zed is 50.19%.


Sylas
el Desencadenado
Karthus wins against Sylas 51.24% of the time which is 1.38% higher against Sylas than the average opponent.
After normalising both champions win rates Karthus wins against Sylas 1.28% less often than would be expected.
The average opponent winrate against Sylas is 49.86%.


Syndra
La Soberana Oscura
Karthus wins against Syndra 51.46% of the time which is 2.06% higher against Syndra than the average opponent.
After normalising both champions win rates Karthus wins against Syndra 0.60% less often than would be expected.
The average opponent winrate against Syndra is 49.40%.


Yasuo
La Espada sin Honor
Karthus wins against Yasuo 56.56% of the time which is 6.25% higher against Yasuo than the average opponent.
After normalising both champions win rates Karthus wins against Yasuo 3.59% more often than would be expected.
The average opponent winrate against Yasuo is 50.31%.