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: 50,734,630
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 top vs middle Counters
Presently there is insufficent games played by Karthus top on Patch 14.23 to determine the strongest middle counters. A matchup requires a minimum of 100 games to be displayed.
Yone
Inoublié
Karthus wins against Yone 48.03% of the time which is 2.51% lower against Yone than the average opponent.
After normalising both champions win rates Karthus wins against Yone 2.64% less often than would be expected.
The average opponent winrate against Yoneis 50.54%.
Sylas
Révolutionnaire déchaîné
Karthus wins against Sylas 48.99% of the time which is 0.08% lower against Sylas than the average opponent.
After normalising both champions win rates Karthus wins against Sylas 0.21% less often than would be expected.
The average opponent winrate against Sylasis 49.07%.
Ahri
Renard à neuf queues
Karthus wins against Ahri 51.55% of the time which is 3.99% higher against Ahri than the average opponent.
After normalising both champions win rates Karthus wins against Ahri 3.85% more often than would be expected.
The average opponent winrate against Ahriis 47.56%.
Akali
Assassin rebelle
Karthus wins against Akali 53.33% of the time which is 4.61% higher against Akali than the average opponent.
After normalising both champions win rates Karthus wins against Akali 4.48% more often than would be expected.
The average opponent winrate against Akaliis 48.72%.