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: 248,611,910
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 support vs support Counters
Karthus support on Patch 30 is the strongest counter to support champions of Hwei, Miss Fortune & Neeko. While Karthus support is countered most by support champions of Milio, Soraka & Xerath. Below is a detailed breakdown of Karthus support counters against support champions with a minimum of 100 games.
Milio
The Gentle Flame
Karthus wins against Milio 36.84% of the time which is 12.25% lower against Milio than the average opponent.
After normalising both champions win rates Karthus wins against Milio 8.27% less often than would be expected.
The average opponent winrate against Miliois 49.09%.
Soraka
the Starchild
Karthus wins against Soraka 39.85% of the time which is 8.89% lower against Soraka than the average opponent.
After normalising both champions win rates Karthus wins against Soraka 4.91% less often than would be expected.
The average opponent winrate against Sorakais 48.74%.
Xerath
the Magus Ascendant
Karthus wins against Xerath 40.93% of the time which is 7.29% lower against Xerath than the average opponent.
After normalising both champions win rates Karthus wins against Xerath 3.32% less often than would be expected.
The average opponent winrate against Xerathis 48.22%.
Poppy
Keeper of the Hammer
Karthus wins against Poppy 41.01% of the time which is 6.29% lower against Poppy than the average opponent.
After normalising both champions win rates Karthus wins against Poppy 2.33% less often than would be expected.
The average opponent winrate against Poppyis 47.30%.
Nami
the Tidecaller
Karthus wins against Nami 42.00% of the time which is 6.63% lower against Nami than the average opponent.
After normalising both champions win rates Karthus wins against Nami 2.65% less often than would be expected.
The average opponent winrate against Namiis 48.63%.
Brand
the Burning Vengeance
Karthus wins against Brand 42.22% of the time which is 7.65% lower against Brand than the average opponent.
After normalising both champions win rates Karthus wins against Brand 3.66% less often than would be expected.
The average opponent winrate against Brandis 49.87%.
Sona
Maven of the Strings
Karthus wins against Sona 42.25% of the time which is 5.79% lower against Sona than the average opponent.
After normalising both champions win rates Karthus wins against Sona 1.82% less often than would be expected.
The average opponent winrate against Sonais 48.04%.
Tahm Kench
The River King
Karthus wins against Tahm Kench 42.47% of the time which is 5.73% lower against Tahm Kench than the average opponent.
After normalising both champions win rates Karthus wins against Tahm Kench 1.76% less often than would be expected.
The average opponent winrate against Tahm Kenchis 48.20%.
Taric
the Shield of Valoran
Karthus wins against Taric 42.64% of the time which is 4.34% lower against Taric than the average opponent.
After normalising both champions win rates Karthus wins against Taric 0.38% less often than would be expected.
The average opponent winrate against Taricis 46.98%.
Zyra
Rise of the Thorns
Karthus wins against Zyra 43.59% of the time which is 4.42% lower against Zyra than the average opponent.
After normalising both champions win rates Karthus wins against Zyra 0.45% less often than would be expected.
The average opponent winrate against Zyrais 48.01%.
Veigar
the Tiny Master of Evil
Karthus wins against Veigar 43.81% of the time which is 8.75% lower against Veigar than the average opponent.
After normalising both champions win rates Karthus wins against Veigar 4.75% less often than would be expected.
The average opponent winrate against Veigaris 52.56%.
Lux
the Lady of Luminosity
Karthus wins against Lux 43.87% of the time which is 5.53% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.54% less often than would be expected.
The average opponent winrate against Luxis 49.40%.
Blitzcrank
the Great Steam Golem
Karthus wins against Blitzcrank 44.25% of the time which is 4.80% lower against Blitzcrank than the average opponent.
After normalising both champions win rates Karthus wins against Blitzcrank 0.82% less often than would be expected.
The average opponent winrate against Blitzcrankis 49.05%.
Janna
the Storm's Fury
Karthus wins against Janna 44.36% of the time which is 4.59% lower against Janna than the average opponent.
After normalising both champions win rates Karthus wins against Janna 0.61% less often than would be expected.
The average opponent winrate against Jannais 48.95%.
Seraphine
the Starry-Eyed Songstress
Karthus wins against Seraphine 44.46% of the time which is 5.55% lower against Seraphine than the average opponent.
After normalising both champions win rates Karthus wins against Seraphine 1.56% less often than would be expected.
The average opponent winrate against Seraphineis 50.01%.
Lulu
the Fae Sorceress
Karthus wins against Lulu 44.87% of the time which is 5.40% lower against Lulu than the average opponent.
After normalising both champions win rates Karthus wins against Lulu 1.41% less often than would be expected.
The average opponent winrate against Luluis 50.27%.
Shaco
the Demon Jester
Karthus wins against Shaco 44.90% of the time which is 3.45% lower against Shaco than the average opponent.
After normalising both champions win rates Karthus wins against Shaco 0.53% more often than would be expected.
The average opponent winrate against Shacois 48.35%.
Alistar
the Minotaur
Karthus wins against Alistar 45.49% of the time which is 4.52% lower against Alistar than the average opponent.
After normalising both champions win rates Karthus wins against Alistar 0.53% less often than would be expected.
The average opponent winrate against Alistaris 50.01%.
Zilean
the Chronokeeper
Karthus wins against Zilean 45.55% of the time which is 3.75% lower against Zilean than the average opponent.
After normalising both champions win rates Karthus wins against Zilean 0.23% more often than would be expected.
The average opponent winrate against Zileanis 49.30%.
Karma
the Enlightened One
Karthus wins against Karma 45.81% of the time which is 5.61% lower against Karma than the average opponent.
After normalising both champions win rates Karthus wins against Karma 1.61% less often than would be expected.
The average opponent winrate against Karmais 51.42%.
Morgana
the Fallen
Karthus wins against Morgana 46.10% of the time which is 3.46% lower against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 0.53% more often than would be expected.
The average opponent winrate against Morganais 49.56%.
Nautilus
the Titan of the Depths
Karthus wins against Nautilus 46.18% of the time which is 4.00% lower against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 0.01% less often than would be expected.
The average opponent winrate against Nautilusis 50.18%.
Malphite
Shard of the Monolith
Karthus wins against Malphite 46.37% of the time which is 5.65% lower against Malphite than the average opponent.
After normalising both champions win rates Karthus wins against Malphite 1.65% less often than would be expected.
The average opponent winrate against Malphiteis 52.02%.
Leona
the Radiant Dawn
Karthus wins against Leona 46.43% of the time which is 1.85% lower against Leona than the average opponent.
After normalising both champions win rates Karthus wins against Leona 2.12% more often than would be expected.
The average opponent winrate against Leonais 48.28%.
Bard
the Wandering Caretaker
Karthus wins against Bard 46.45% of the time which is 4.40% lower against Bard than the average opponent.
After normalising both champions win rates Karthus wins against Bard 0.41% less often than would be expected.
The average opponent winrate against Bardis 50.85%.
Pyke
the Bloodharbor Ripper
Karthus wins against Pyke 46.54% of the time which is 3.90% lower against Pyke than the average opponent.
After normalising both champions win rates Karthus wins against Pyke 0.09% more often than would be expected.
The average opponent winrate against Pykeis 50.44%.
Vel'Koz
the Eye of the Void
Karthus wins against Vel'Koz 46.57% of the time which is 2.34% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Karthus wins against Vel'Koz 1.64% more often than would be expected.
The average opponent winrate against Vel'Kozis 48.91%.
Senna
the Redeemer
Karthus wins against Senna 47.20% of the time which is 4.39% lower against Senna than the average opponent.
After normalising both champions win rates Karthus wins against Senna 0.39% less often than would be expected.
The average opponent winrate against Sennais 51.59%.
Pantheon
the Unbreakable Spear
Karthus wins against Pantheon 47.28% of the time which is 4.16% lower against Pantheon than the average opponent.
After normalising both champions win rates Karthus wins against Pantheon 0.16% less often than would be expected.
The average opponent winrate against Pantheonis 51.44%.
Yuumi
the Magical Cat
Karthus wins against Yuumi 47.34% of the time which is 5.68% lower against Yuumi than the average opponent.
After normalising both champions win rates Karthus wins against Yuumi 1.69% less often than would be expected.
The average opponent winrate against Yuumiis 53.02%.
Rakan
The Charmer
Karthus wins against Rakan 47.45% of the time which is 2.60% lower against Rakan than the average opponent.
After normalising both champions win rates Karthus wins against Rakan 1.39% more often than would be expected.
The average opponent winrate against Rakanis 50.05%.
Maokai
the Twisted Treant
Karthus wins against Maokai 47.73% of the time which is 1.69% lower against Maokai than the average opponent.
After normalising both champions win rates Karthus wins against Maokai 2.30% more often than would be expected.
The average opponent winrate against Maokaiis 49.42%.
Swain
the Noxian Grand General
Karthus wins against Swain 48.03% of the time which is 2.79% lower against Swain than the average opponent.
After normalising both champions win rates Karthus wins against Swain 1.20% more often than would be expected.
The average opponent winrate against Swainis 50.82%.
Camille
the Steel Shadow
Karthus wins against Camille 48.28% of the time which is 2.67% lower against Camille than the average opponent.
After normalising both champions win rates Karthus wins against Camille 1.32% more often than would be expected.
The average opponent winrate against Camilleis 50.95%.
Thresh
the Chain Warden
Karthus wins against Thresh 48.72% of the time which is 1.25% lower against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 2.74% more often than would be expected.
The average opponent winrate against Threshis 49.97%.
Teemo
the Swift Scout
Karthus wins against Teemo 49.03% of the time which is 0.14% higher against Teemo than the average opponent.
After normalising both champions win rates Karthus wins against Teemo 4.12% more often than would be expected.
The average opponent winrate against Teemois 48.89%.
Braum
the Heart of the Freljord
Karthus wins against Braum 49.07% of the time which is 0.56% higher against Braum than the average opponent.
After normalising both champions win rates Karthus wins against Braum 4.54% more often than would be expected.
The average opponent winrate against Braumis 48.51%.
Ashe
the Frost Archer
Karthus wins against Ashe 51.58% of the time which is 1.78% lower against Ashe than the average opponent.
After normalising both champions win rates Karthus wins against Ashe 2.21% more often than would be expected.
The average opponent winrate against Asheis 53.36%.
Rell
the Iron Maiden
Karthus wins against Rell 52.31% of the time which is 2.88% higher against Rell than the average opponent.
After normalising both champions win rates Karthus wins against Rell 6.87% more often than would be expected.
The average opponent winrate against Rellis 49.43%.
Neeko
the Curious Chameleon
Karthus wins against Neeko 52.45% of the time which is 1.71% higher against Neeko than the average opponent.
After normalising both champions win rates Karthus wins against Neeko 5.70% more often than would be expected.
The average opponent winrate against Neekois 50.74%.
Miss Fortune
the Bounty Hunter
Karthus wins against Miss Fortune 56.85% of the time which is 0.44% higher against Miss Fortune than the average opponent.
After normalising both champions win rates Karthus wins against Miss Fortune 4.40% more often than would be expected.
The average opponent winrate against Miss Fortuneis 56.41%.
Hwei
the Visionary
Karthus wins against Hwei 60.40% of the time which is 6.83% higher against Hwei than the average opponent.
After normalising both champions win rates Karthus wins against Hwei 10.82% more often than would be expected.
The average opponent winrate against Hweiis 53.57%.