

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: 1,281,640
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 jungle vs top Counters
Presently there is insufficent games played by Karthus jungle on Patch 15.9 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.


Shen
the Eye of Twilight
Karthus wins against Shen 41.30% of the time which is 5.61% lower against Shen than the average opponent.
After normalising both champions win rates Karthus wins against Shen 7.90% less often than would be expected.
The average opponent winrate against Shen is 46.91%.


Ambessa
Matriarch of War
Karthus wins against Ambessa 46.73% of the time which is 2.96% lower against Ambessa than the average opponent.
After normalising both champions win rates Karthus wins against Ambessa 5.25% less often than would be expected.
The average opponent winrate against Ambessa is 49.69%.


Renekton
the Butcher of the Sands
Karthus wins against Renekton 49.29% of the time which is 1.01% higher against Renekton than the average opponent.
After normalising both champions win rates Karthus wins against Renekton 1.28% less often than would be expected.
The average opponent winrate against Renekton is 48.28%.


Aatrox
the Darkin Blade
Karthus wins against Aatrox 52.43% of the time which is 2.75% higher against Aatrox than the average opponent.
After normalising both champions win rates Karthus wins against Aatrox 0.46% more often than would be expected.
The average opponent winrate against Aatrox is 49.68%.


Jayce
the Defender of Tomorrow
Karthus wins against Jayce 52.98% of the time which is 1.87% higher against Jayce than the average opponent.
After normalising both champions win rates Karthus wins against Jayce 0.42% less often than would be expected.
The average opponent winrate against Jayce is 51.11%.