

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: 137,839,620
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
Orianna top on Patch 15.1 is the strongest counter to top champions of Aurora, Teemo & Vladimir. While Orianna top is countered most by top champions of Garen, Heimerdinger & Mordekaiser. Below is a detailed breakdown of Orianna top counters against top champions with a minimum of 100 games.


Garen
The Might of Demacia
Orianna wins against Garen 42.45% of the time which is 6.93% lower against Garen than the average opponent.
After normalising both champions win rates Orianna wins against Garen 7.00% less often than would be expected.
The average opponent winrate against Garen is 49.38%.


Heimerdinger
the Revered Inventor
Orianna wins against Heimerdinger 45.14% of the time which is 2.62% lower against Heimerdinger than the average opponent.
After normalising both champions win rates Orianna wins against Heimerdinger 2.69% less often than would be expected.
The average opponent winrate against Heimerdinger is 47.76%.


Mordekaiser
the Iron Revenant
Orianna wins against Mordekaiser 46.67% of the time which is 0.88% lower against Mordekaiser than the average opponent.
After normalising both champions win rates Orianna wins against Mordekaiser 0.95% less often than would be expected.
The average opponent winrate against Mordekaiser is 47.55%.


Cassiopeia
the Serpent's Embrace
Orianna wins against Cassiopeia 50.63% of the time which is 1.60% higher against Cassiopeia than the average opponent.
After normalising both champions win rates Orianna wins against Cassiopeia 1.53% more often than would be expected.
The average opponent winrate against Cassiopeia is 49.03%.


Darius
the Hand of Noxus
Orianna wins against Darius 51.39% of the time which is 0.81% higher against Darius than the average opponent.
After normalising both champions win rates Orianna wins against Darius 0.74% more often than would be expected.
The average opponent winrate against Darius is 50.58%.


Vladimir
the Crimson Reaper
Orianna wins against Vladimir 51.41% of the time which is 1.04% higher against Vladimir than the average opponent.
After normalising both champions win rates Orianna wins against Vladimir 0.97% more often than would be expected.
The average opponent winrate against Vladimir is 50.37%.


Teemo
the Swift Scout
Orianna wins against Teemo 52.30% of the time which is 4.55% higher against Teemo than the average opponent.
After normalising both champions win rates Orianna wins against Teemo 4.48% more often than would be expected.
The average opponent winrate against Teemo is 47.75%.


Aurora
the Witch Between Worlds
Orianna wins against Aurora 57.48% of the time which is 5.52% higher against Aurora than the average opponent.
After normalising both champions win rates Orianna wins against Aurora 5.45% more often than would be expected.
The average opponent winrate against Aurora is 51.96%.