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: 244,235,110
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.
Amumu Counters
Amumu middle vs top Counters
Presently there is insufficent games played by Amumu middle on Patch 30 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.
Sett
the Boss
Amumu wins against Sett 32.74% of the time which is 14.95% lower against Sett than the average opponent.
After normalising both champions win rates Amumu wins against Sett 7.04% less often than would be expected.
The average opponent winrate against Settis 47.69%.
Mordekaiser
the Iron Revenant
Amumu wins against Mordekaiser 37.50% of the time which is 10.27% lower against Mordekaiser than the average opponent.
After normalising both champions win rates Amumu wins against Mordekaiser 2.35% less often than would be expected.
The average opponent winrate against Mordekaiseris 47.77%.
Darius
the Hand of Noxus
Amumu wins against Darius 49.15% of the time which is 1.51% lower against Darius than the average opponent.
After normalising both champions win rates Amumu wins against Darius 6.50% more often than would be expected.
The average opponent winrate against Dariusis 50.66%.