

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.
All Ranks Champions Analysed: 18,566,910
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
Karthus middle on Patch 15.18 is the strongest counter to middle champions of Ahri, Yasuo & Malzahar. While Karthus middle is countered most by middle champions of Sylas, Yone & Akali. Below is a detailed breakdown of Karthus middle counters against middle champions with a minimum of 100 games.


Sylas
the Unshackled
Karthus wins against Sylas 44.54% of the time which is 6.63% lower against Sylas than the average opponent.
After normalising both champions win rates Karthus wins against Sylas 4.98% less often than would be expected.
The average opponent winrate against Sylas is 51.17%.


Yone
the Unforgotten
Karthus wins against Yone 47.76% of the time which is 4.31% lower against Yone than the average opponent.
After normalising both champions win rates Karthus wins against Yone 2.66% less often than would be expected.
The average opponent winrate against Yone is 52.07%.


Akali
the Rogue Assassin
Karthus wins against Akali 51.33% of the time which is 1.18% higher against Akali than the average opponent.
After normalising both champions win rates Karthus wins against Akali 2.83% more often than would be expected.
The average opponent winrate against Akali is 50.15%.


Malzahar
the Prophet of the Void
Karthus wins against Malzahar 51.40% of the time which is 3.73% higher against Malzahar than the average opponent.
After normalising both champions win rates Karthus wins against Malzahar 5.37% more often than would be expected.
The average opponent winrate against Malzahar is 47.67%.


Yasuo
the Unforgiven
Karthus wins against Yasuo 52.99% of the time which is 3.12% higher against Yasuo than the average opponent.
After normalising both champions win rates Karthus wins against Yasuo 4.77% more often than would be expected.
The average opponent winrate against Yasuo is 49.87%.


Ahri
the Nine-Tailed Fox
Karthus wins against Ahri 61.17% of the time which is 10.33% higher against Ahri than the average opponent.
After normalising both champions win rates Karthus wins against Ahri 11.98% more often than would be expected.
The average opponent winrate against Ahri is 50.84%.