

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: 23,153,458
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 middle Counters
Karthus jungle on Patch 30 is the strongest counter to middle champions of Taliyah, LeBlanc & Neeko. While Karthus jungle is countered most by middle champions of Heimerdinger, Brand & Xerath. Below is a detailed breakdown of Karthus jungle counters against middle champions with a minimum of 100 games.


Heimerdinger
the Revered Inventor
Karthus wins against Heimerdinger 38.69% of the time which is 9.05% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Karthus wins against Heimerdinger 6.28% less often than would be expected.
The average opponent winrate against Heimerdinger is 47.74%.


Brand
the Burning Vengeance
Karthus wins against Brand 39.64% of the time which is 9.85% lower against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 7.07% less often than would be expected.
The average opponent winrate against Brand is 49.49%.


Xerath
the Magus Ascendant
Karthus wins against Xerath 40.42% of the time which is 8.72% lower against Xerath than the average opponent.
After normalising both champions win rates Karthus wins against Xerath 5.94% less often than would be expected.
The average opponent winrate against Xerath is 49.14%.


Swain
the Noxian Grand General
Karthus wins against Swain 41.22% of the time which is 6.43% lower against Swain than the average opponent.
After normalising both champions win rates Karthus wins against Swain 3.66% less often than would be expected.
The average opponent winrate against Swain is 47.65%.


Vel'Koz
the Eye of the Void
Karthus wins against Vel'Koz 42.11% of the time which is 7.48% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Karthus wins against Vel'Koz 4.70% less often than would be expected.
The average opponent winrate against Vel'Koz is 49.59%.


Viktor
the Herald of the Arcane
Karthus wins against Viktor 43.55% of the time which is 6.45% lower against Viktor than the average opponent.
After normalising both champions win rates Karthus wins against Viktor 3.67% less often than would be expected.
The average opponent winrate against Viktor is 50.00%.


Morgana
the Fallen
Karthus wins against Morgana 44.03% of the time which is 4.86% lower against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 2.08% less often than would be expected.
The average opponent winrate against Morgana is 48.89%.


Vladimir
the Crimson Reaper
Karthus wins against Vladimir 44.26% of the time which is 6.00% lower against Vladimir than the average opponent.
After normalising both champions win rates Karthus wins against Vladimir 3.22% less often than would be expected.
The average opponent winrate against Vladimir is 50.26%.


Galio
the Colossus
Karthus wins against Galio 44.44% of the time which is 4.15% lower against Galio than the average opponent.
After normalising both champions win rates Karthus wins against Galio 1.37% less often than would be expected.
The average opponent winrate against Galio is 48.59%.


Malphite
Shard of the Monolith
Karthus wins against Malphite 44.90% of the time which is 4.40% lower against Malphite than the average opponent.
After normalising both champions win rates Karthus wins against Malphite 1.62% less often than would be expected.
The average opponent winrate against Malphite is 49.30%.


Diana
Scorn of the Moon
Karthus wins against Diana 45.13% of the time which is 4.41% lower against Diana than the average opponent.
After normalising both champions win rates Karthus wins against Diana 1.63% less often than would be expected.
The average opponent winrate against Diana is 49.54%.


Malzahar
the Prophet of the Void
Karthus wins against Malzahar 45.18% of the time which is 2.50% lower against Malzahar than the average opponent.
After normalising both champions win rates Karthus wins against Malzahar 0.27% more often than would be expected.
The average opponent winrate against Malzahar is 47.68%.


Teemo
the Swift Scout
Karthus wins against Teemo 45.53% of the time which is 3.52% lower against Teemo than the average opponent.
After normalising both champions win rates Karthus wins against Teemo 0.74% less often than would be expected.
The average opponent winrate against Teemo is 49.05%.


Ziggs
the Hexplosives Expert
Karthus wins against Ziggs 46.08% of the time which is 3.96% lower against Ziggs than the average opponent.
After normalising both champions win rates Karthus wins against Ziggs 1.18% less often than would be expected.
The average opponent winrate against Ziggs is 50.04%.


Irelia
the Blade Dancer
Karthus wins against Irelia 46.37% of the time which is 3.63% lower against Irelia than the average opponent.
After normalising both champions win rates Karthus wins against Irelia 0.85% less often than would be expected.
The average opponent winrate against Irelia is 50.00%.


Yone
the Unforgotten
Karthus wins against Yone 46.92% of the time which is 4.61% lower against Yone than the average opponent.
After normalising both champions win rates Karthus wins against Yone 1.83% less often than would be expected.
The average opponent winrate against Yone is 51.53%.


Yasuo
the Unforgiven
Karthus wins against Yasuo 47.03% of the time which is 2.49% lower against Yasuo than the average opponent.
After normalising both champions win rates Karthus wins against Yasuo 0.29% more often than would be expected.
The average opponent winrate against Yasuo is 49.52%.


Yunara
the Unbroken Faith
Karthus wins against Yunara 47.06% of the time which is 11.72% lower against Yunara than the average opponent.
After normalising both champions win rates Karthus wins against Yunara 8.99% less often than would be expected.
The average opponent winrate against Yunara is 58.78%.


Talon
the Blade's Shadow
Karthus wins against Talon 47.09% of the time which is 5.70% lower against Talon than the average opponent.
After normalising both champions win rates Karthus wins against Talon 2.92% less often than would be expected.
The average opponent winrate against Talon is 52.79%.


Lux
the Lady of Luminosity
Karthus wins against Lux 47.13% of the time which is 1.99% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 0.79% more often than would be expected.
The average opponent winrate against Lux is 49.12%.


Fizz
the Tidal Trickster
Karthus wins against Fizz 47.26% of the time which is 2.37% lower against Fizz than the average opponent.
After normalising both champions win rates Karthus wins against Fizz 0.41% more often than would be expected.
The average opponent winrate against Fizz is 49.63%.


Mel
the Soul's Reflection
Karthus wins against Mel 47.32% of the time which is 3.99% lower against Mel than the average opponent.
After normalising both champions win rates Karthus wins against Mel 1.21% less often than would be expected.
The average opponent winrate against Mel is 51.31%.


Zed
the Master of Shadows
Karthus wins against Zed 47.36% of the time which is 5.68% lower against Zed than the average opponent.
After normalising both champions win rates Karthus wins against Zed 2.90% less often than would be expected.
The average opponent winrate against Zed is 53.04%.


Annie
the Dark Child
Karthus wins against Annie 47.70% of the time which is 3.99% lower against Annie than the average opponent.
After normalising both champions win rates Karthus wins against Annie 1.21% less often than would be expected.
The average opponent winrate against Annie is 51.69%.


Ryze
the Rune Mage
Karthus wins against Ryze 47.97% of the time which is 2.77% lower against Ryze than the average opponent.
After normalising both champions win rates Karthus wins against Ryze 0.01% more often than would be expected.
The average opponent winrate against Ryze is 50.74%.


Twisted Fate
the Card Master
Karthus wins against Twisted Fate 48.11% of the time which is 4.21% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Karthus wins against Twisted Fate 1.43% less often than would be expected.
The average opponent winrate against Twisted Fate is 52.32%.


Veigar
the Tiny Master of Evil
Karthus wins against Veigar 48.14% of the time which is 0.03% lower against Veigar than the average opponent.
After normalising both champions win rates Karthus wins against Veigar 2.74% more often than would be expected.
The average opponent winrate against Veigar is 48.17%.


Pantheon
the Unbreakable Spear
Karthus wins against Pantheon 48.17% of the time which is 1.38% lower against Pantheon than the average opponent.
After normalising both champions win rates Karthus wins against Pantheon 1.40% more often than would be expected.
The average opponent winrate against Pantheon is 49.55%.


Naafiri
the Hound of a Hundred Bites
Karthus wins against Naafiri 48.20% of the time which is 1.59% lower against Naafiri than the average opponent.
After normalising both champions win rates Karthus wins against Naafiri 1.19% more often than would be expected.
The average opponent winrate against Naafiri is 49.79%.


Syndra
the Dark Sovereign
Karthus wins against Syndra 48.40% of the time which is 2.70% lower against Syndra than the average opponent.
After normalising both champions win rates Karthus wins against Syndra 0.08% more often than would be expected.
The average opponent winrate against Syndra is 51.10%.


Vex
the Gloomist
Karthus wins against Vex 48.40% of the time which is 2.23% lower against Vex than the average opponent.
After normalising both champions win rates Karthus wins against Vex 0.55% more often than would be expected.
The average opponent winrate against Vex is 50.63%.


Aurora
the Witch Between Worlds
Karthus wins against Aurora 48.63% of the time which is 3.15% lower against Aurora than the average opponent.
After normalising both champions win rates Karthus wins against Aurora 0.37% less often than would be expected.
The average opponent winrate against Aurora is 51.78%.


Hwei
the Visionary
Karthus wins against Hwei 48.63% of the time which is 2.10% lower against Hwei than the average opponent.
After normalising both champions win rates Karthus wins against Hwei 0.68% more often than would be expected.
The average opponent winrate against Hwei is 50.73%.


Akshan
the Rogue Sentinel
Karthus wins against Akshan 48.76% of the time which is 4.44% lower against Akshan than the average opponent.
After normalising both champions win rates Karthus wins against Akshan 1.66% less often than would be expected.
The average opponent winrate against Akshan is 53.20%.


Sylas
the Unshackled
Karthus wins against Sylas 48.83% of the time which is 3.19% lower against Sylas than the average opponent.
After normalising both champions win rates Karthus wins against Sylas 0.41% less often than would be expected.
The average opponent winrate against Sylas is 52.02%.


Kassadin
the Void Walker
Karthus wins against Kassadin 48.94% of the time which is 2.17% lower against Kassadin than the average opponent.
After normalising both champions win rates Karthus wins against Kassadin 0.61% more often than would be expected.
The average opponent winrate against Kassadin is 51.11%.


Aurelion Sol
The Star Forger
Karthus wins against Aurelion Sol 48.94% of the time which is 0.23% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Karthus wins against Aurelion Sol 2.55% more often than would be expected.
The average opponent winrate against Aurelion Sol is 49.17%.


Katarina
the Sinister Blade
Karthus wins against Katarina 49.72% of the time which is 2.77% lower against Katarina than the average opponent.
After normalising both champions win rates Karthus wins against Katarina 0.01% more often than would be expected.
The average opponent winrate against Katarina is 52.49%.


Orianna
the Lady of Clockwork
Karthus wins against Orianna 49.89% of the time which is 1.83% lower against Orianna than the average opponent.
After normalising both champions win rates Karthus wins against Orianna 0.95% more often than would be expected.
The average opponent winrate against Orianna is 51.72%.


Ekko
the Boy Who Shattered Time
Karthus wins against Ekko 50.00% of the time which is 0.38% higher against Ekko than the average opponent.
After normalising both champions win rates Karthus wins against Ekko 3.16% more often than would be expected.
The average opponent winrate against Ekko is 49.62%.


Akali
the Rogue Assassin
Karthus wins against Akali 50.39% of the time which is 0.38% lower against Akali than the average opponent.
After normalising both champions win rates Karthus wins against Akali 2.40% more often than would be expected.
The average opponent winrate against Akali is 50.77%.


Anivia
the Cryophoenix
Karthus wins against Anivia 50.83% of the time which is 0.21% higher against Anivia than the average opponent.
After normalising both champions win rates Karthus wins against Anivia 2.99% more often than would be expected.
The average opponent winrate against Anivia is 50.62%.


Ahri
the Nine-Tailed Fox
Karthus wins against Ahri 50.85% of the time which is 0.66% lower against Ahri than the average opponent.
After normalising both champions win rates Karthus wins against Ahri 2.12% more often than would be expected.
The average opponent winrate against Ahri is 51.51%.


Cassiopeia
the Serpent's Embrace
Karthus wins against Cassiopeia 50.98% of the time which is 0.59% lower against Cassiopeia than the average opponent.
After normalising both champions win rates Karthus wins against Cassiopeia 2.19% more often than would be expected.
The average opponent winrate against Cassiopeia is 51.57%.


Azir
the Emperor of the Sands
Karthus wins against Azir 52.01% of the time which is 1.92% lower against Azir than the average opponent.
After normalising both champions win rates Karthus wins against Azir 0.85% more often than would be expected.
The average opponent winrate against Azir is 53.93%.


Lissandra
the Ice Witch
Karthus wins against Lissandra 52.02% of the time which is 1.11% higher against Lissandra than the average opponent.
After normalising both champions win rates Karthus wins against Lissandra 3.89% more often than would be expected.
The average opponent winrate against Lissandra is 50.91%.


Qiyana
Empress of the Elements
Karthus wins against Qiyana 52.05% of the time which is 4.17% lower against Qiyana than the average opponent.
After normalising both champions win rates Karthus wins against Qiyana 1.41% less often than would be expected.
The average opponent winrate against Qiyana is 56.22%.


Zoe
the Aspect of Twilight
Karthus wins against Zoe 52.59% of the time which is 0.54% lower against Zoe than the average opponent.
After normalising both champions win rates Karthus wins against Zoe 2.24% more often than would be expected.
The average opponent winrate against Zoe is 53.13%.


Neeko
the Curious Chameleon
Karthus wins against Neeko 52.60% of the time which is 1.77% higher against Neeko than the average opponent.
After normalising both champions win rates Karthus wins against Neeko 4.55% more often than would be expected.
The average opponent winrate against Neeko is 50.83%.


LeBlanc
the Deceiver
Karthus wins against LeBlanc 53.31% of the time which is 1.24% higher against LeBlanc than the average opponent.
After normalising both champions win rates Karthus wins against LeBlanc 4.02% more often than would be expected.
The average opponent winrate against LeBlanc is 52.07%.


Taliyah
the Stoneweaver
Karthus wins against Taliyah 57.59% of the time which is 2.79% higher against Taliyah than the average opponent.
After normalising both champions win rates Karthus wins against Taliyah 5.56% more often than would be expected.
The average opponent winrate against Taliyah is 54.80%.