

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.
Emerald+ Champions Analysed: 12,824,315
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 bottom vs top Counters
Karthus bottom on Patch 15.11 is the strongest counter to top champions of Yorick, Ambessa & Aatrox. While Karthus bottom is countered most by top champions of Cho'Gath, Riven & Jax. Below is a detailed breakdown of Karthus bottom counters against top champions with a minimum of 100 games.


Cho'Gath
the Terror of the Void
Karthus wins against Cho'Gath 47.79% of the time which is 0.08% lower against Cho'Gath than the average opponent.
After normalising both champions win rates Karthus wins against Cho'Gath 5.84% less often than would be expected.
The average opponent winrate against Cho'Gath is 47.87%.


Riven
the Exile
Karthus wins against Riven 48.43% of the time which is 1.47% higher against Riven than the average opponent.
After normalising both champions win rates Karthus wins against Riven 4.29% less often than would be expected.
The average opponent winrate against Riven is 46.96%.


Jax
Grandmaster at Arms
Karthus wins against Jax 50.00% of the time which is 0.65% higher against Jax than the average opponent.
After normalising both champions win rates Karthus wins against Jax 5.10% less often than would be expected.
The average opponent winrate against Jax is 49.35%.


Sett
the Boss
Karthus wins against Sett 51.70% of the time which is 4.78% higher against Sett than the average opponent.
After normalising both champions win rates Karthus wins against Sett 0.98% less often than would be expected.
The average opponent winrate against Sett is 46.92%.


Fiora
the Grand Duelist
Karthus wins against Fiora 52.46% of the time which is 4.85% higher against Fiora than the average opponent.
After normalising both champions win rates Karthus wins against Fiora 0.91% less often than would be expected.
The average opponent winrate against Fiora is 47.61%.


Gwen
The Hallowed Seamstress
Karthus wins against Gwen 52.68% of the time which is 4.33% higher against Gwen than the average opponent.
After normalising both champions win rates Karthus wins against Gwen 1.43% less often than would be expected.
The average opponent winrate against Gwen is 48.35%.


Dr. Mundo
the Madman of Zaun
Karthus wins against Dr. Mundo 52.84% of the time which is 2.79% higher against Dr. Mundo than the average opponent.
After normalising both champions win rates Karthus wins against Dr. Mundo 2.96% less often than would be expected.
The average opponent winrate against Dr. Mundo is 50.05%.


Sion
The Undead Juggernaut
Karthus wins against Sion 53.38% of the time which is 3.97% higher against Sion than the average opponent.
After normalising both champions win rates Karthus wins against Sion 1.78% less often than would be expected.
The average opponent winrate against Sion is 49.41%.


Shen
the Eye of Twilight
Karthus wins against Shen 54.59% of the time which is 7.91% higher against Shen than the average opponent.
After normalising both champions win rates Karthus wins against Shen 2.15% more often than would be expected.
The average opponent winrate against Shen is 46.68%.


Renekton
the Butcher of the Sands
Karthus wins against Renekton 55.13% of the time which is 6.23% higher against Renekton than the average opponent.
After normalising both champions win rates Karthus wins against Renekton 0.47% more often than would be expected.
The average opponent winrate against Renekton is 48.90%.


Mordekaiser
the Iron Revenant
Karthus wins against Mordekaiser 55.66% of the time which is 6.55% higher against Mordekaiser than the average opponent.
After normalising both champions win rates Karthus wins against Mordekaiser 0.79% more often than would be expected.
The average opponent winrate against Mordekaiser is 49.11%.


Jayce
the Defender of Tomorrow
Karthus wins against Jayce 58.18% of the time which is 7.69% higher against Jayce than the average opponent.
After normalising both champions win rates Karthus wins against Jayce 1.94% more often than would be expected.
The average opponent winrate against Jayce is 50.49%.


Darius
the Hand of Noxus
Karthus wins against Darius 58.52% of the time which is 9.18% higher against Darius than the average opponent.
After normalising both champions win rates Karthus wins against Darius 3.43% more often than would be expected.
The average opponent winrate against Darius is 49.34%.


Aatrox
the Darkin Blade
Karthus wins against Aatrox 58.96% of the time which is 9.14% higher against Aatrox than the average opponent.
After normalising both champions win rates Karthus wins against Aatrox 3.39% more often than would be expected.
The average opponent winrate against Aatrox is 49.82%.


Ambessa
Matriarch of War
Karthus wins against Ambessa 59.46% of the time which is 10.22% higher against Ambessa than the average opponent.
After normalising both champions win rates Karthus wins against Ambessa 4.46% more often than would be expected.
The average opponent winrate against Ambessa is 49.24%.


Yorick
Shepherd of Souls
Karthus wins against Yorick 60.87% of the time which is 12.76% higher against Yorick than the average opponent.
After normalising both champions win rates Karthus wins against Yorick 7.00% more often than would be expected.
The average opponent winrate against Yorick is 48.11%.