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.
Diamond Champions Analysed: 16,537,335
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 middle Counters
Presently there is insufficent games played by Karthus middle on Patch 30 to determine the strongest middle counters. A matchup requires a minimum of 100 games to be displayed.
LeBlanc
amăgitoarea
Karthus wins against LeBlanc 50.47% of the time which is 2.27% higher against LeBlanc than the average opponent.
After normalising both champions win rates Karthus wins against LeBlanc 0.61% less often than would be expected.
The average opponent winrate against LeBlancis 48.20%.
Hwei
vizionarul
Karthus wins against Hwei 50.50% of the time which is 2.22% higher against Hwei than the average opponent.
After normalising both champions win rates Karthus wins against Hwei 0.66% less often than would be expected.
The average opponent winrate against Hweiis 48.28%.
Yone
spadasinul nepieritor
Karthus wins against Yone 54.37% of the time which is 3.94% higher against Yone than the average opponent.
After normalising both champions win rates Karthus wins against Yone 1.06% more often than would be expected.
The average opponent winrate against Yoneis 50.43%.