

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: 7,357,743
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 top Counters
Presently there is insufficent games played by Karthus bottom on Patch 7 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.


Jax
Grandmaster at Arms
Karthus wins against Jax 53.21% of the time which is 3.25% higher against Jax than the average opponent.
After normalising both champions win rates Karthus wins against Jax 0.30% less often than would be expected.
The average opponent winrate against Jax is 49.96%.


Darius
the Hand of Noxus
Karthus wins against Darius 53.92% of the time which is 3.73% higher against Darius than the average opponent.
After normalising both champions win rates Karthus wins against Darius 0.18% more often than would be expected.
The average opponent winrate against Darius is 50.19%.


Aatrox
the Darkin Blade
Karthus wins against Aatrox 56.35% of the time which is 5.75% higher against Aatrox than the average opponent.
After normalising both champions win rates Karthus wins against Aatrox 2.20% more often than would be expected.
The average opponent winrate against Aatrox is 50.60%.