

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: 51,672,030
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 support vs bottom Counters
Karthus support on Patch 15.15 is the strongest counter to bottom champions of Ezreal, Tristana & Lucian. While Karthus support is countered most by bottom champions of Sivir, Vayne & Caitlyn. Below is a detailed breakdown of Karthus support counters against bottom champions with a minimum of 100 games.


Sivir
the Battle Mistress
Karthus wins against Sivir 30.06% of the time which is 18.05% lower against Sivir than the average opponent.
After normalising both champions win rates Karthus wins against Sivir 14.06% less often than would be expected.
The average opponent winrate against Sivir is 48.11%.


Vayne
the Night Hunter
Karthus wins against Vayne 40.19% of the time which is 8.01% lower against Vayne than the average opponent.
After normalising both champions win rates Karthus wins against Vayne 4.02% less often than would be expected.
The average opponent winrate against Vayne is 48.20%.


Caitlyn
the Sheriff of Piltover
Karthus wins against Caitlyn 43.56% of the time which is 6.89% lower against Caitlyn than the average opponent.
After normalising both champions win rates Karthus wins against Caitlyn 2.88% less often than would be expected.
The average opponent winrate against Caitlyn is 50.45%.


Smolder
the Fiery Fledgling
Karthus wins against Smolder 45.22% of the time which is 2.85% lower against Smolder than the average opponent.
After normalising both champions win rates Karthus wins against Smolder 1.14% more often than would be expected.
The average opponent winrate against Smolder is 48.07%.


Jinx
the Loose Cannon
Karthus wins against Jinx 46.15% of the time which is 2.59% lower against Jinx than the average opponent.
After normalising both champions win rates Karthus wins against Jinx 1.41% more often than would be expected.
The average opponent winrate against Jinx is 48.74%.


Kai'Sa
Daughter of the Void
Karthus wins against Kai'Sa 46.26% of the time which is 4.12% lower against Kai'Sa than the average opponent.
After normalising both champions win rates Karthus wins against Kai'Sa 0.11% less often than would be expected.
The average opponent winrate against Kai'Sa is 50.38%.


Aphelios
the Weapon of the Faithful
Karthus wins against Aphelios 46.67% of the time which is 3.59% lower against Aphelios than the average opponent.
After normalising both champions win rates Karthus wins against Aphelios 0.42% more often than would be expected.
The average opponent winrate against Aphelios is 50.26%.


Ashe
the Frost Archer
Karthus wins against Ashe 46.90% of the time which is 2.61% lower against Ashe than the average opponent.
After normalising both champions win rates Karthus wins against Ashe 1.40% more often than would be expected.
The average opponent winrate against Ashe is 49.51%.


Yunara
the Unbroken Faith
Karthus wins against Yunara 46.90% of the time which is 4.46% lower against Yunara than the average opponent.
After normalising both champions win rates Karthus wins against Yunara 0.44% less often than would be expected.
The average opponent winrate against Yunara is 51.36%.


Jhin
the Virtuoso
Karthus wins against Jhin 47.35% of the time which is 2.68% lower against Jhin than the average opponent.
After normalising both champions win rates Karthus wins against Jhin 1.33% more often than would be expected.
The average opponent winrate against Jhin is 50.03%.


Miss Fortune
the Bounty Hunter
Karthus wins against Miss Fortune 47.60% of the time which is 1.51% lower against Miss Fortune than the average opponent.
After normalising both champions win rates Karthus wins against Miss Fortune 2.49% more often than would be expected.
The average opponent winrate against Miss Fortune is 49.11%.


Lucian
the Purifier
Karthus wins against Lucian 49.28% of the time which is 1.44% lower against Lucian than the average opponent.
After normalising both champions win rates Karthus wins against Lucian 2.57% more often than would be expected.
The average opponent winrate against Lucian is 50.72%.


Tristana
the Yordle Gunner
Karthus wins against Tristana 50.00% of the time which is 0.39% lower against Tristana than the average opponent.
After normalising both champions win rates Karthus wins against Tristana 3.62% more often than would be expected.
The average opponent winrate against Tristana is 50.39%.


Ezreal
the Prodigal Explorer
Karthus wins against Ezreal 53.74% of the time which is 0.92% higher against Ezreal than the average opponent.
After normalising both champions win rates Karthus wins against Ezreal 4.94% more often than would be expected.
The average opponent winrate against Ezreal is 52.82%.