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: 109,514,490
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 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.
Heimerdinger
the Revered Inventor
Orianna wins against Heimerdinger 44.25% of the time which is 4.57% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Orianna wins against Heimerdinger 4.35% less often than would be expected.
The average opponent winrate against Heimerdingeris 48.82%.
Sett
the Boss
Orianna wins against Sett 46.23% of the time which is 1.49% lower against Sett than the average opponent.
After normalising both champions win rates Orianna wins against Sett 1.27% less often than would be expected.
The average opponent winrate against Settis 47.72%.
Teemo
the Swift Scout
Orianna wins against Teemo 50.41% of the time which is 0.78% higher against Teemo than the average opponent.
After normalising both champions win rates Orianna wins against Teemo 1.00% more often than would be expected.
The average opponent winrate against Teemois 49.63%.
Vayne
the Night Hunter
Orianna wins against Vayne 51.79% of the time which is 0.65% higher against Vayne than the average opponent.
After normalising both champions win rates Orianna wins against Vayne 0.87% more often than would be expected.
The average opponent winrate against Vayneis 51.14%.
Twisted Fate
the Card Master
Orianna wins against Twisted Fate 54.37% of the time which is 4.47% higher against Twisted Fate than the average opponent.
After normalising both champions win rates Orianna wins against Twisted Fate 4.69% more often than would be expected.
The average opponent winrate against Twisted Fateis 49.90%.