

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: 3,430,663
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 30 is the strongest counter to support champions of Poppy, Braum & Alistar. While Karthus jungle is countered most by support champions of Sona, Janna & Neeko. 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 43.60% of the time which is 4.60% lower against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 6.45% less often than would be expected.
The average opponent winrate against Sona is 48.20%.


Janna
the Storm's Fury
Karthus wins against Janna 45.80% of the time which is 2.50% lower against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 4.35% less often than would be expected.
The average opponent winrate against Janna is 48.30%.


Neeko
the Curious Chameleon
Karthus wins against Neeko 45.99% of the time which is 4.36% lower against Neeko than the average opponent.
After normalising both champions win rates Karthus wins against Neeko 6.21% less often than would be expected.
The average opponent winrate against Neeko is 50.35%.


Milio
The Gentle Flame
Karthus wins against Milio 46.18% of the time which is 4.16% lower against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 6.01% less often than would be expected.
The average opponent winrate against Milio is 50.34%.


Bard
the Wandering Caretaker
Karthus wins against Bard 47.62% of the time which is 0.86% lower against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 2.71% less often than would be expected.
The average opponent winrate against Bard is 48.48%.


Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 47.98% of the time which is 1.00% lower against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 2.85% less often than would be expected.
The average opponent winrate against Blitzcrank is 48.98%.


Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 49.12% of the time which is 0.30% higher against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 1.55% less often than would be expected.
The average opponent winrate against Seraphine is 48.82%.


Karma
the Enlightened One
Karthus wins against Karma 49.13% of the time which is 0.76% lower against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 2.61% less often than would be expected.
The average opponent winrate against Karma is 49.89%.


Soraka
the Starchild
Karthus wins against Soraka 49.34% of the time which is 0.40% higher against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 1.45% less often than would be expected.
The average opponent winrate against Soraka is 48.94%.


Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 49.45% of the time which is 0.25% higher against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 1.60% less often than would be expected.
The average opponent winrate against Pyke is 49.20%.


Nami
the Tidecaller
Karthus wins against Nami 49.50% of the time which is 0.54% higher against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 1.31% less often than would be expected.
The average opponent winrate against Nami is 48.96%.


Lulu
the Fae Sorceress
Karthus wins against Lulu 49.83% of the time which is 0.91% higher against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 0.94% less often than would be expected.
The average opponent winrate against Lulu is 48.92%.


Yuumi
the Magical Cat
Karthus wins against Yuumi 50.45% of the time which is 3.55% lower against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 5.39% less often than would be expected.
The average opponent winrate against Yuumi is 54.00%.


Senna
the Redeemer
Karthus wins against Senna 50.76% of the time which is 1.31% lower against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 3.16% less often than would be expected.
The average opponent winrate against Senna is 52.07%.


Thresh
the Chain Warden
Karthus wins against Thresh 52.63% of the time which is 4.52% higher against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 2.67% more often than would be expected.
The average opponent winrate against Thresh is 48.11%.


Rakan
The Charmer
Karthus wins against Rakan 52.72% of the time which is 2.89% higher against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 1.04% more often than would be expected.
The average opponent winrate against Rakan is 49.83%.


Rell
the Iron Maiden
Karthus wins against Rell 52.74% of the time which is 4.81% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 2.96% more often than would be expected.
The average opponent winrate against Rell is 47.93%.


Leona
the Radiant Dawn
Karthus wins against Leona 54.31% of the time which is 5.73% higher against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 3.88% more often than would be expected.
The average opponent winrate against Leona is 48.58%.


Nautilus
the Titan of the Depths
Karthus wins against Nautilus 54.34% of the time which is 3.20% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 1.35% more often than would be expected.
The average opponent winrate against Nautilus is 51.14%.


Alistar
the Minotaur
Karthus wins against Alistar 55.38% of the time which is 6.93% higher against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 5.08% more often than would be expected.
The average opponent winrate against Alistar is 48.45%.


Braum
the Heart of the Freljord
Karthus wins against Braum 56.20% of the time which is 7.30% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 5.45% more often than would be expected.
The average opponent winrate against Braum is 48.90%.


Poppy
Keeper of the Hammer
Karthus wins against Poppy 59.44% of the time which is 11.70% higher against Poppy than the average opponent.
After normalising both champions win rates Karthus wins against Poppy 9.85% more often than would be expected.
The average opponent winrate against Poppy is 47.74%.