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.
Grandmaster Champions Analysed: 559,239
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.
Orianna Counters
Orianna middle vs top Counters
Presently there is insufficent games played by Orianna middle on Patch 30 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.
Jayce
the Defender of Tomorrow
Orianna wins against Jayce 44.44% of the time which is 3.25% lower against Jayce than the average opponent.
After normalising both champions win rates Orianna wins against Jayce 12.16% less often than would be expected.
The average opponent winrate against Jayceis 47.69%.
Renekton
the Butcher of the Sands
Orianna wins against Renekton 54.03% of the time which is 6.34% higher against Renekton than the average opponent.
After normalising both champions win rates Orianna wins against Renekton 2.57% less often than would be expected.
The average opponent winrate against Renektonis 47.69%.
K'Sante
the Pride of Nazumah
Orianna wins against K'Sante 55.97% of the time which is 8.65% higher against K'Sante than the average opponent.
After normalising both champions win rates Orianna wins against K'Sante 0.26% less often than would be expected.
The average opponent winrate against K'Santeis 47.32%.
Ambessa
Matriarch of War
Orianna wins against Ambessa 57.50% of the time which is 10.11% higher against Ambessa than the average opponent.
After normalising both champions win rates Orianna wins against Ambessa 1.20% more often than would be expected.
The average opponent winrate against Ambessais 47.39%.