

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.
Master Champions Analysed: 1,638,518
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 support Counters
Karthus jungle on Patch 15.9 is the strongest counter to support champions of Neeko, Nautilus & Lulu. While Karthus jungle is countered most by support champions of Sona, Janna & Bard. Below is a detailed breakdown of Karthus jungle counters against support champions with a minimum of 100 games.


Sona
Maven of the Strings
Karthus wins against Sona 39.22% of the time which is 7.22% lower against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 10.93% less often than would be expected.
The average opponent winrate against Sona is 46.44%.


Janna
the Storm's Fury
Karthus wins against Janna 45.19% of the time which is 2.22% lower against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 5.93% less often than would be expected.
The average opponent winrate against Janna is 47.41%.


Bard
the Wandering Caretaker
Karthus wins against Bard 45.33% of the time which is 1.78% lower against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 5.49% less often than would be expected.
The average opponent winrate against Bard is 47.11%.


Braum
the Heart of the Freljord
Karthus wins against Braum 46.95% of the time which is 0.81% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 2.89% less often than would be expected.
The average opponent winrate against Braum is 46.14%.


Alistar
the Minotaur
Karthus wins against Alistar 47.64% of the time which is 0.14% higher against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 3.57% less often than would be expected.
The average opponent winrate against Alistar is 47.50%.


Fiddlesticks
the Ancient Fear
Karthus wins against Fiddlesticks 48.21% of the time which is 4.44% higher against Fiddlesticks than the average opponent.
After normalising both champions win rates Karthus wins against Fiddlesticks 0.75% more often than would be expected.
The average opponent winrate against Fiddlesticks is 43.77%.


Milio
The Gentle Flame
Karthus wins against Milio 48.41% of the time which is 1.05% higher against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 2.66% less often than would be expected.
The average opponent winrate against Milio is 47.36%.


Yuumi
the Magical Cat
Karthus wins against Yuumi 48.97% of the time which is 1.65% lower against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 5.36% less often than would be expected.
The average opponent winrate against Yuumi is 50.62%.


Leona
the Radiant Dawn
Karthus wins against Leona 49.74% of the time which is 2.45% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 1.26% less often than would be expected.
The average opponent winrate against Leona is 47.29%.


Nami
the Tidecaller
Karthus wins against Nami 51.08% of the time which is 3.84% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 0.13% more often than would be expected.
The average opponent winrate against Nami is 47.24%.


Rakan
The Charmer
Karthus wins against Rakan 52.31% of the time which is 3.98% higher against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 0.27% more often than would be expected.
The average opponent winrate against Rakan is 48.33%.


Karma
the Enlightened One
Karthus wins against Karma 52.87% of the time which is 3.55% higher against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 0.16% less often than would be expected.
The average opponent winrate against Karma is 49.32%.


Thresh
the Chain Warden
Karthus wins against Thresh 53.00% of the time which is 5.77% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 2.06% more often than would be expected.
The average opponent winrate against Thresh is 47.23%.


Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 53.01% of the time which is 5.40% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 1.69% more often than would be expected.
The average opponent winrate against Pyke is 47.61%.


Soraka
the Starchild
Karthus wins against Soraka 53.33% of the time which is 6.18% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 2.47% more often than would be expected.
The average opponent winrate against Soraka is 47.15%.


Rell
the Iron Maiden
Karthus wins against Rell 54.29% of the time which is 7.09% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 3.38% more often than would be expected.
The average opponent winrate against Rell is 47.20%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 56.27% of the time which is 9.35% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 5.64% more often than would be expected.
The average opponent winrate against Lulu is 46.92%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 56.54% of the time which is 7.13% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 3.42% more often than would be expected.
The average opponent winrate against Nautilus is 49.41%.


Neeko
the Curious Chameleon
Karthus wins against Neeko 56.88% of the time which is 8.45% higher against Neeko than the average opponent.
After normalising both champions win rates Karthus wins against Neeko 4.74% more often than would be expected.
The average opponent winrate against Neeko is 48.43%.