

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: 34,598,102
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 support Counters
Karthus middle on Patch 30 is the strongest counter to support champions of Thresh, Senna & Lulu. While Karthus middle is countered most by support champions of Soraka, Braum & Rakan. Below is a detailed breakdown of Karthus middle counters against support champions with a minimum of 100 games.


Soraka
the Starchild
Karthus wins against Soraka 39.58% of the time which is 7.68% lower against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 10.10% less often than would be expected.
The average opponent winrate against Soraka is 47.26%.


Braum
the Heart of the Freljord
Karthus wins against Braum 40.43% of the time which is 6.16% lower against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 8.58% less often than would be expected.
The average opponent winrate against Braum is 46.59%.


Rakan
The Charmer
Karthus wins against Rakan 41.67% of the time which is 6.93% lower against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 9.35% less often than would be expected.
The average opponent winrate against Rakan is 48.60%.


Milio
The Gentle Flame
Karthus wins against Milio 46.72% of the time which is 0.66% lower against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 3.08% less often than would be expected.
The average opponent winrate against Milio is 47.38%.


Leona
the Radiant Dawn
Karthus wins against Leona 47.57% of the time which is 1.10% lower against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 3.52% less often than would be expected.
The average opponent winrate against Leona is 48.67%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 48.04% of the time which is 0.98% lower against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 3.40% less often than would be expected.
The average opponent winrate against Nautilus is 49.02%.


Janna
the Storm's Fury
Karthus wins against Janna 48.15% of the time which is 1.07% higher against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 1.35% less often than would be expected.
The average opponent winrate against Janna is 47.08%.


Nami
the Tidecaller
Karthus wins against Nami 48.72% of the time which is 1.82% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 0.60% less often than would be expected.
The average opponent winrate against Nami is 46.90%.


Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 49.62% of the time which is 0.55% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 1.87% less often than would be expected.
The average opponent winrate against Pyke is 49.07%.


Yuumi
the Magical Cat
Karthus wins against Yuumi 50.00% of the time which is 1.78% higher against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 0.64% less often than would be expected.
The average opponent winrate against Yuumi is 48.22%.


Lux
the Lady of Luminosity
Karthus wins against Lux 50.42% of the time which is 0.93% higher against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.49% less often than would be expected.
The average opponent winrate against Lux is 49.49%.


Karma
the Enlightened One
Karthus wins against Karma 50.83% of the time which is 1.64% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 0.78% less often than would be expected.
The average opponent winrate against Karma is 49.19%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 52.42% of the time which is 5.56% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 3.14% more often than would be expected.
The average opponent winrate against Lulu is 46.86%.


Senna
the Redeemer
Karthus wins against Senna 53.40% of the time which is 5.41% higher against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 2.99% more often than would be expected.
The average opponent winrate against Senna is 47.99%.


Thresh
the Chain Warden
Karthus wins against Thresh 56.13% of the time which is 8.97% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 6.55% more often than would be expected.
The average opponent winrate against Thresh is 47.16%.