

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.
Iron Champions Analysed: 22,640,001
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 top Counters
Karthus jungle on Patch 30 is the strongest counter to top champions of Pantheon, K'Sante & Gwen. While Karthus jungle is countered most by top champions of Ornn, Dr. Mundo & Tahm Kench. Below is a detailed breakdown of Karthus jungle counters against top champions with a minimum of 100 games.


Ornn
The Fire below the Mountain
Karthus wins against Ornn 40.51% of the time which is 10.40% lower against Ornn than the average opponent.
After normalising both champions win rates Karthus wins against Ornn 4.99% less often than would be expected.
The average opponent winrate against Ornn is 50.91%.


Dr. Mundo
the Madman of Zaun
Karthus wins against Dr. Mundo 40.73% of the time which is 8.75% lower against Dr. Mundo than the average opponent.
After normalising both champions win rates Karthus wins against Dr. Mundo 3.34% less often than would be expected.
The average opponent winrate against Dr. Mundo is 49.48%.


Tahm Kench
The River King
Karthus wins against Tahm Kench 41.10% of the time which is 10.88% lower against Tahm Kench than the average opponent.
After normalising both champions win rates Karthus wins against Tahm Kench 5.47% less often than would be expected.
The average opponent winrate against Tahm Kench is 51.98%.


Varus
the Arrow of Retribution
Karthus wins against Varus 42.16% of the time which is 13.45% lower against Varus than the average opponent.
After normalising both champions win rates Karthus wins against Varus 8.06% less often than would be expected.
The average opponent winrate against Varus is 55.61%.


Yorick
Shepherd of Souls
Karthus wins against Yorick 42.41% of the time which is 5.67% lower against Yorick than the average opponent.
After normalising both champions win rates Karthus wins against Yorick 0.27% less often than would be expected.
The average opponent winrate against Yorick is 48.08%.


Warwick
the Uncaged Wrath of Zaun
Karthus wins against Warwick 43.49% of the time which is 7.75% lower against Warwick than the average opponent.
After normalising both champions win rates Karthus wins against Warwick 2.34% less often than would be expected.
The average opponent winrate against Warwick is 51.24%.


Sett
the Boss
Karthus wins against Sett 44.11% of the time which is 4.75% lower against Sett than the average opponent.
After normalising both champions win rates Karthus wins against Sett 0.65% more often than would be expected.
The average opponent winrate against Sett is 48.86%.


Shen
the Eye of Twilight
Karthus wins against Shen 44.42% of the time which is 7.72% lower against Shen than the average opponent.
After normalising both champions win rates Karthus wins against Shen 2.31% less often than would be expected.
The average opponent winrate against Shen is 52.14%.


Nasus
the Curator of the Sands
Karthus wins against Nasus 44.49% of the time which is 6.23% lower against Nasus than the average opponent.
After normalising both champions win rates Karthus wins against Nasus 0.82% less often than would be expected.
The average opponent winrate against Nasus is 50.72%.


Akali
the Rogue Assassin
Karthus wins against Akali 45.16% of the time which is 7.70% lower against Akali than the average opponent.
After normalising both champions win rates Karthus wins against Akali 2.29% less often than would be expected.
The average opponent winrate against Akali is 52.86%.


Urgot
the Dreadnought
Karthus wins against Urgot 45.18% of the time which is 5.14% lower against Urgot than the average opponent.
After normalising both champions win rates Karthus wins against Urgot 0.27% more often than would be expected.
The average opponent winrate against Urgot is 50.32%.


Trundle
the Troll King
Karthus wins against Trundle 45.28% of the time which is 5.76% lower against Trundle than the average opponent.
After normalising both champions win rates Karthus wins against Trundle 0.35% less often than would be expected.
The average opponent winrate against Trundle is 51.04%.


Fiora
the Grand Duelist
Karthus wins against Fiora 45.45% of the time which is 8.08% lower against Fiora than the average opponent.
After normalising both champions win rates Karthus wins against Fiora 2.67% less often than would be expected.
The average opponent winrate against Fiora is 53.53%.


Mordekaiser
the Iron Revenant
Karthus wins against Mordekaiser 45.67% of the time which is 5.21% lower against Mordekaiser than the average opponent.
After normalising both champions win rates Karthus wins against Mordekaiser 0.20% more often than would be expected.
The average opponent winrate against Mordekaiser is 50.88%.


Kled
the Cantankerous Cavalier
Karthus wins against Kled 45.71% of the time which is 7.20% lower against Kled than the average opponent.
After normalising both champions win rates Karthus wins against Kled 1.79% less often than would be expected.
The average opponent winrate against Kled is 52.91%.


Illaoi
the Kraken Priestess
Karthus wins against Illaoi 46.32% of the time which is 4.88% lower against Illaoi than the average opponent.
After normalising both champions win rates Karthus wins against Illaoi 0.53% more often than would be expected.
The average opponent winrate against Illaoi is 51.20%.


Heimerdinger
the Revered Inventor
Karthus wins against Heimerdinger 46.37% of the time which is 4.73% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Karthus wins against Heimerdinger 0.68% more often than would be expected.
The average opponent winrate against Heimerdinger is 51.10%.


Kayle
the Righteous
Karthus wins against Kayle 46.44% of the time which is 4.82% lower against Kayle than the average opponent.
After normalising both champions win rates Karthus wins against Kayle 0.59% more often than would be expected.
The average opponent winrate against Kayle is 51.26%.


Garen
The Might of Demacia
Karthus wins against Garen 46.48% of the time which is 5.75% lower against Garen than the average opponent.
After normalising both champions win rates Karthus wins against Garen 0.34% less often than would be expected.
The average opponent winrate against Garen is 52.23%.


Irelia
the Blade Dancer
Karthus wins against Irelia 46.53% of the time which is 8.54% lower against Irelia than the average opponent.
After normalising both champions win rates Karthus wins against Irelia 3.14% less often than would be expected.
The average opponent winrate against Irelia is 55.07%.


Olaf
the Berserker
Karthus wins against Olaf 46.61% of the time which is 7.03% lower against Olaf than the average opponent.
After normalising both champions win rates Karthus wins against Olaf 1.62% less often than would be expected.
The average opponent winrate against Olaf is 53.64%.


Cho'Gath
the Terror of the Void
Karthus wins against Cho'Gath 46.65% of the time which is 4.45% lower against Cho'Gath than the average opponent.
After normalising both champions win rates Karthus wins against Cho'Gath 0.96% more often than would be expected.
The average opponent winrate against Cho'Gath is 51.10%.


Gnar
the Missing Link
Karthus wins against Gnar 46.69% of the time which is 7.66% lower against Gnar than the average opponent.
After normalising both champions win rates Karthus wins against Gnar 2.26% less often than would be expected.
The average opponent winrate against Gnar is 54.35%.


Gragas
the Rabble Rouser
Karthus wins against Gragas 46.88% of the time which is 8.67% lower against Gragas than the average opponent.
After normalising both champions win rates Karthus wins against Gragas 3.28% less often than would be expected.
The average opponent winrate against Gragas is 55.55%.


Sion
The Undead Juggernaut
Karthus wins against Sion 46.91% of the time which is 2.93% lower against Sion than the average opponent.
After normalising both champions win rates Karthus wins against Sion 2.48% more often than would be expected.
The average opponent winrate against Sion is 49.84%.


Jayce
the Defender of Tomorrow
Karthus wins against Jayce 47.01% of the time which is 8.56% lower against Jayce than the average opponent.
After normalising both champions win rates Karthus wins against Jayce 3.17% less often than would be expected.
The average opponent winrate against Jayce is 55.57%.


Yone
the Unforgotten
Karthus wins against Yone 47.23% of the time which is 6.86% lower against Yone than the average opponent.
After normalising both champions win rates Karthus wins against Yone 1.46% less often than would be expected.
The average opponent winrate against Yone is 54.09%.


Tryndamere
the Barbarian King
Karthus wins against Tryndamere 47.31% of the time which is 5.99% lower against Tryndamere than the average opponent.
After normalising both champions win rates Karthus wins against Tryndamere 0.58% less often than would be expected.
The average opponent winrate against Tryndamere is 53.30%.


Volibear
the Relentless Storm
Karthus wins against Volibear 47.64% of the time which is 4.74% lower against Volibear than the average opponent.
After normalising both champions win rates Karthus wins against Volibear 0.67% more often than would be expected.
The average opponent winrate against Volibear is 52.38%.


Singed
the Mad Chemist
Karthus wins against Singed 48.13% of the time which is 1.60% lower against Singed than the average opponent.
After normalising both champions win rates Karthus wins against Singed 3.81% more often than would be expected.
The average opponent winrate against Singed is 49.73%.


Camille
the Steel Shadow
Karthus wins against Camille 48.15% of the time which is 8.59% lower against Camille than the average opponent.
After normalising both champions win rates Karthus wins against Camille 3.21% less often than would be expected.
The average opponent winrate against Camille is 56.74%.


Renekton
the Butcher of the Sands
Karthus wins against Renekton 48.24% of the time which is 3.80% lower against Renekton than the average opponent.
After normalising both champions win rates Karthus wins against Renekton 1.61% more often than would be expected.
The average opponent winrate against Renekton is 52.04%.


Sylas
the Unshackled
Karthus wins against Sylas 48.57% of the time which is 5.48% lower against Sylas than the average opponent.
After normalising both champions win rates Karthus wins against Sylas 0.08% less often than would be expected.
The average opponent winrate against Sylas is 54.05%.


Yasuo
the Unforgiven
Karthus wins against Yasuo 48.58% of the time which is 4.53% lower against Yasuo than the average opponent.
After normalising both champions win rates Karthus wins against Yasuo 0.88% more often than would be expected.
The average opponent winrate against Yasuo is 53.11%.


Teemo
the Swift Scout
Karthus wins against Teemo 48.70% of the time which is 1.69% lower against Teemo than the average opponent.
After normalising both champions win rates Karthus wins against Teemo 3.72% more often than would be expected.
The average opponent winrate against Teemo is 50.39%.


Darius
the Hand of Noxus
Karthus wins against Darius 49.01% of the time which is 5.84% lower against Darius than the average opponent.
After normalising both champions win rates Karthus wins against Darius 0.44% less often than would be expected.
The average opponent winrate against Darius is 54.85%.


Riven
the Exile
Karthus wins against Riven 49.01% of the time which is 7.48% lower against Riven than the average opponent.
After normalising both champions win rates Karthus wins against Riven 2.10% less often than would be expected.
The average opponent winrate against Riven is 56.49%.


Malphite
Shard of the Monolith
Karthus wins against Malphite 49.16% of the time which is 2.25% lower against Malphite than the average opponent.
After normalising both champions win rates Karthus wins against Malphite 3.16% more often than would be expected.
The average opponent winrate against Malphite is 51.41%.


Kennen
the Heart of the Tempest
Karthus wins against Kennen 49.32% of the time which is 4.72% lower against Kennen than the average opponent.
After normalising both champions win rates Karthus wins against Kennen 0.68% more often than would be expected.
The average opponent winrate against Kennen is 54.04%.


Ambessa
Matriarch of War
Karthus wins against Ambessa 49.37% of the time which is 5.83% lower against Ambessa than the average opponent.
After normalising both champions win rates Karthus wins against Ambessa 0.43% less often than would be expected.
The average opponent winrate against Ambessa is 55.20%.


Quinn
Demacia's Wings
Karthus wins against Quinn 49.64% of the time which is 3.58% lower against Quinn than the average opponent.
After normalising both champions win rates Karthus wins against Quinn 1.83% more often than would be expected.
The average opponent winrate against Quinn is 53.22%.


Gangplank
the Saltwater Scourge
Karthus wins against Gangplank 49.76% of the time which is 5.13% lower against Gangplank than the average opponent.
After normalising both champions win rates Karthus wins against Gangplank 0.27% more often than would be expected.
The average opponent winrate against Gangplank is 54.89%.


Jax
Grandmaster at Arms
Karthus wins against Jax 50.14% of the time which is 2.50% lower against Jax than the average opponent.
After normalising both champions win rates Karthus wins against Jax 2.91% more often than would be expected.
The average opponent winrate against Jax is 52.64%.


Aatrox
the Darkin Blade
Karthus wins against Aatrox 50.20% of the time which is 5.47% lower against Aatrox than the average opponent.
After normalising both champions win rates Karthus wins against Aatrox 0.08% less often than would be expected.
The average opponent winrate against Aatrox is 55.67%.


Smolder
the Fiery Fledgling
Karthus wins against Smolder 50.43% of the time which is 3.45% lower against Smolder than the average opponent.
After normalising both champions win rates Karthus wins against Smolder 1.96% more often than would be expected.
The average opponent winrate against Smolder is 53.88%.


Vayne
the Night Hunter
Karthus wins against Vayne 50.53% of the time which is 5.25% lower against Vayne than the average opponent.
After normalising both champions win rates Karthus wins against Vayne 0.14% more often than would be expected.
The average opponent winrate against Vayne is 55.78%.


Vladimir
the Crimson Reaper
Karthus wins against Vladimir 51.10% of the time which is 3.72% lower against Vladimir than the average opponent.
After normalising both champions win rates Karthus wins against Vladimir 1.68% more often than would be expected.
The average opponent winrate against Vladimir is 54.82%.


Rumble
the Mechanized Menace
Karthus wins against Rumble 52.26% of the time which is 3.46% lower against Rumble than the average opponent.
After normalising both champions win rates Karthus wins against Rumble 1.93% more often than would be expected.
The average opponent winrate against Rumble is 55.72%.


Gwen
The Hallowed Seamstress
Karthus wins against Gwen 53.49% of the time which is 3.34% lower against Gwen than the average opponent.
After normalising both champions win rates Karthus wins against Gwen 2.04% more often than would be expected.
The average opponent winrate against Gwen is 56.83%.


K'Sante
the Pride of Nazumah
Karthus wins against K'Sante 54.26% of the time which is 3.77% lower against K'Sante than the average opponent.
After normalising both champions win rates Karthus wins against K'Sante 1.59% more often than would be expected.
The average opponent winrate against K'Sante is 58.03%.


Pantheon
the Unbreakable Spear
Karthus wins against Pantheon 55.02% of the time which is 0.71% higher against Pantheon than the average opponent.
After normalising both champions win rates Karthus wins against Pantheon 6.11% more often than would be expected.
The average opponent winrate against Pantheon is 54.31%.