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.
Gold+ Champions Analysed: 72,597,906
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 top vs top Counters
Presently there is insufficent games played by Orianna top on Patch 14.5 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.
Vayne
la Cazadora Nocturna
Orianna wins against Vayne 44.34% of the time which is 5.33% lower against Vayne than the average opponent.
After normalising both champions win rates Orianna wins against Vayne 5.56% less often than would be expected.
The average opponent winrate against Vayneis 49.67%.
Karma
la Iluminada
Orianna wins against Karma 49.09% of the time which is 1.43% higher against Karma than the average opponent.
After normalising both champions win rates Orianna wins against Karma 1.20% more often than would be expected.
The average opponent winrate against Karmais 47.66%.
Teemo
el Explorador Veloz
Orianna wins against Teemo 52.12% of the time which is 3.57% higher against Teemo than the average opponent.
After normalising both champions win rates Orianna wins against Teemo 3.34% more often than would be expected.
The average opponent winrate against Teemois 48.55%.