

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: 137,839,620
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 top vs top Counters
Karthus top on Patch 15.1 is the strongest counter to top champions of Jax, Heimerdinger & Gragas. While Karthus top is countered most by top champions of Tahm Kench, Cho'Gath & Riven. Below is a detailed breakdown of Karthus top counters against top champions with a minimum of 100 games.


Tahm Kench
The River King
Karthus wins against Tahm Kench 32.08% of the time which is 16.65% lower against Tahm Kench than the average opponent.
After normalising both champions win rates Karthus wins against Tahm Kench 12.46% less often than would be expected.
The average opponent winrate against Tahm Kench is 48.73%.


Cho'Gath
the Terror of the Void
Karthus wins against Cho'Gath 36.09% of the time which is 12.03% lower against Cho'Gath than the average opponent.
After normalising both champions win rates Karthus wins against Cho'Gath 7.85% less often than would be expected.
The average opponent winrate against Cho'Gath is 48.12%.


Riven
the Exile
Karthus wins against Riven 36.13% of the time which is 14.74% lower against Riven than the average opponent.
After normalising both champions win rates Karthus wins against Riven 10.54% less often than would be expected.
The average opponent winrate against Riven is 50.87%.


Fiora
the Grand Duelist
Karthus wins against Fiora 37.25% of the time which is 14.14% lower against Fiora than the average opponent.
After normalising both champions win rates Karthus wins against Fiora 9.93% less often than would be expected.
The average opponent winrate against Fiora is 51.39%.


Sion
The Undead Juggernaut
Karthus wins against Sion 38.41% of the time which is 11.75% lower against Sion than the average opponent.
After normalising both champions win rates Karthus wins against Sion 7.55% less often than would be expected.
The average opponent winrate against Sion is 50.16%.


Yorick
Shepherd of Souls
Karthus wins against Yorick 38.69% of the time which is 8.70% lower against Yorick than the average opponent.
After normalising both champions win rates Karthus wins against Yorick 4.53% less often than would be expected.
The average opponent winrate against Yorick is 47.39%.


Nasus
the Curator of the Sands
Karthus wins against Nasus 40.00% of the time which is 10.33% lower against Nasus than the average opponent.
After normalising both champions win rates Karthus wins against Nasus 6.13% less often than would be expected.
The average opponent winrate against Nasus is 50.33%.


Garen
The Might of Demacia
Karthus wins against Garen 40.07% of the time which is 9.31% lower against Garen than the average opponent.
After normalising both champions win rates Karthus wins against Garen 5.12% less often than would be expected.
The average opponent winrate against Garen is 49.38%.


Aatrox
the Darkin Blade
Karthus wins against Aatrox 40.18% of the time which is 10.15% lower against Aatrox than the average opponent.
After normalising both champions win rates Karthus wins against Aatrox 5.95% less often than would be expected.
The average opponent winrate against Aatrox is 50.33%.


Warwick
the Uncaged Wrath of Zaun
Karthus wins against Warwick 41.35% of the time which is 6.14% lower against Warwick than the average opponent.
After normalising both champions win rates Karthus wins against Warwick 1.97% less often than would be expected.
The average opponent winrate against Warwick is 47.49%.


Irelia
the Blade Dancer
Karthus wins against Irelia 42.63% of the time which is 7.09% lower against Irelia than the average opponent.
After normalising both champions win rates Karthus wins against Irelia 2.89% less often than would be expected.
The average opponent winrate against Irelia is 49.72%.


Malphite
Shard of the Monolith
Karthus wins against Malphite 42.94% of the time which is 6.36% lower against Malphite than the average opponent.
After normalising both champions win rates Karthus wins against Malphite 2.17% less often than would be expected.
The average opponent winrate against Malphite is 49.30%.


Dr. Mundo
the Madman of Zaun
Karthus wins against Dr. Mundo 43.40% of the time which is 5.64% lower against Dr. Mundo than the average opponent.
After normalising both champions win rates Karthus wins against Dr. Mundo 1.45% less often than would be expected.
The average opponent winrate against Dr. Mundo is 49.04%.


Yone
the Unforgotten
Karthus wins against Yone 43.54% of the time which is 8.69% lower against Yone than the average opponent.
After normalising both champions win rates Karthus wins against Yone 4.48% less often than would be expected.
The average opponent winrate against Yone is 52.23%.


Trundle
the Troll King
Karthus wins against Trundle 45.03% of the time which is 4.13% lower against Trundle than the average opponent.
After normalising both champions win rates Karthus wins against Trundle 0.06% more often than would be expected.
The average opponent winrate against Trundle is 49.16%.


Sett
the Boss
Karthus wins against Sett 45.82% of the time which is 2.80% lower against Sett than the average opponent.
After normalising both champions win rates Karthus wins against Sett 1.39% more often than would be expected.
The average opponent winrate against Sett is 48.62%.


Mordekaiser
the Iron Revenant
Karthus wins against Mordekaiser 45.86% of the time which is 1.69% lower against Mordekaiser than the average opponent.
After normalising both champions win rates Karthus wins against Mordekaiser 2.48% more often than would be expected.
The average opponent winrate against Mordekaiser is 47.55%.


Volibear
the Relentless Storm
Karthus wins against Volibear 45.91% of the time which is 3.39% lower against Volibear than the average opponent.
After normalising both champions win rates Karthus wins against Volibear 0.80% more often than would be expected.
The average opponent winrate against Volibear is 49.30%.


Gangplank
the Saltwater Scourge
Karthus wins against Gangplank 46.09% of the time which is 6.31% lower against Gangplank than the average opponent.
After normalising both champions win rates Karthus wins against Gangplank 2.10% less often than would be expected.
The average opponent winrate against Gangplank is 52.40%.


Kayle
the Righteous
Karthus wins against Kayle 46.43% of the time which is 1.66% lower against Kayle than the average opponent.
After normalising both champions win rates Karthus wins against Kayle 2.52% more often than would be expected.
The average opponent winrate against Kayle is 48.09%.


Teemo
the Swift Scout
Karthus wins against Teemo 46.45% of the time which is 1.30% lower against Teemo than the average opponent.
After normalising both champions win rates Karthus wins against Teemo 2.88% more often than would be expected.
The average opponent winrate against Teemo is 47.75%.


Shen
the Eye of Twilight
Karthus wins against Shen 46.49% of the time which is 3.64% lower against Shen than the average opponent.
After normalising both champions win rates Karthus wins against Shen 0.56% more often than would be expected.
The average opponent winrate against Shen is 50.13%.


Darius
the Hand of Noxus
Karthus wins against Darius 46.63% of the time which is 3.95% lower against Darius than the average opponent.
After normalising both champions win rates Karthus wins against Darius 0.25% more often than would be expected.
The average opponent winrate against Darius is 50.58%.


Renekton
the Butcher of the Sands
Karthus wins against Renekton 47.83% of the time which is 2.71% lower against Renekton than the average opponent.
After normalising both champions win rates Karthus wins against Renekton 1.49% more often than would be expected.
The average opponent winrate against Renekton is 50.54%.


K'Sante
the Pride of Nazumah
Karthus wins against K'Sante 47.89% of the time which is 5.27% lower against K'Sante than the average opponent.
After normalising both champions win rates Karthus wins against K'Sante 1.06% less often than would be expected.
The average opponent winrate against K'Sante is 53.16%.


Urgot
the Dreadnought
Karthus wins against Urgot 48.53% of the time which is 1.13% higher against Urgot than the average opponent.
After normalising both champions win rates Karthus wins against Urgot 5.30% more often than would be expected.
The average opponent winrate against Urgot is 47.40%.


Illaoi
the Kraken Priestess
Karthus wins against Illaoi 48.92% of the time which is 0.16% lower against Illaoi than the average opponent.
After normalising both champions win rates Karthus wins against Illaoi 4.03% more often than would be expected.
The average opponent winrate against Illaoi is 49.08%.


Jayce
the Defender of Tomorrow
Karthus wins against Jayce 48.96% of the time which is 3.91% lower against Jayce than the average opponent.
After normalising both champions win rates Karthus wins against Jayce 0.30% more often than would be expected.
The average opponent winrate against Jayce is 52.87%.


Gnar
the Missing Link
Karthus wins against Gnar 51.56% of the time which is 1.37% higher against Gnar than the average opponent.
After normalising both champions win rates Karthus wins against Gnar 5.57% more often than would be expected.
The average opponent winrate against Gnar is 50.19%.


Ornn
The Fire below the Mountain
Karthus wins against Ornn 51.59% of the time which is 2.59% higher against Ornn than the average opponent.
After normalising both champions win rates Karthus wins against Ornn 6.78% more often than would be expected.
The average opponent winrate against Ornn is 49.00%.


Ambessa
Matriarch of War
Karthus wins against Ambessa 53.44% of the time which is 1.21% higher against Ambessa than the average opponent.
After normalising both champions win rates Karthus wins against Ambessa 5.42% more often than would be expected.
The average opponent winrate against Ambessa is 52.23%.


Gragas
the Rabble Rouser
Karthus wins against Gragas 54.31% of the time which is 3.16% higher against Gragas than the average opponent.
After normalising both champions win rates Karthus wins against Gragas 7.37% more often than would be expected.
The average opponent winrate against Gragas is 51.15%.


Heimerdinger
the Revered Inventor
Karthus wins against Heimerdinger 54.33% of the time which is 6.57% higher against Heimerdinger than the average opponent.
After normalising both champions win rates Karthus wins against Heimerdinger 10.75% more often than would be expected.
The average opponent winrate against Heimerdinger is 47.76%.


Jax
Grandmaster at Arms
Karthus wins against Jax 55.42% of the time which is 3.30% higher against Jax than the average opponent.
After normalising both champions win rates Karthus wins against Jax 7.51% more often than would be expected.
The average opponent winrate against Jax is 52.12%.