

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.
Bronze Champions Analysed: 36,554,809
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
Presently there is insufficent games played by Karthus support on Patch 30 to determine the strongest support counters. A matchup requires a minimum of 100 games to be displayed.


Thresh
der Kettenwächter
Karthus wins against Thresh 42.31% of the time which is 8.43% lower against Thresh than the average opponent.
After normalising both champions win rates Karthus wins against Thresh 5.06% less often than would be expected.
The average opponent winrate against Thresh is 50.74%.


Lux
die Lady des Lichts
Karthus wins against Lux 44.75% of the time which is 4.52% lower against Lux than the average opponent.
After normalising both champions win rates Karthus wins against Lux 1.15% less often than would be expected.
The average opponent winrate against Lux is 49.27%.


Morgana
die Gefallene
Karthus wins against Morgana 46.21% of the time which is 2.28% lower against Morgana than the average opponent.
After normalising both champions win rates Karthus wins against Morgana 1.08% more often than would be expected.
The average opponent winrate against Morgana is 48.49%.


Nautilus
der Titan der Tiefen
Karthus wins against Nautilus 55.56% of the time which is 4.53% higher against Nautilus than the average opponent.
After normalising both champions win rates Karthus wins against Nautilus 7.90% more often than would be expected.
The average opponent winrate against Nautilus is 51.03%.