

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.
Iron Champions Analysed: 1,629,869
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.


Senna Counters
Senna bottom vs top Counters
Presently there is insufficent games played by Senna bottom on Patch 15.17 to determine the strongest top counters. A matchup requires a minimum of 100 games to be displayed.


Garen
The Might of Demacia
Senna wins against Garen 45.61% of the time which is 5.75% lower against Garen than the average opponent.
After normalising both champions win rates Senna wins against Garen 3.44% less often than would be expected.
The average opponent winrate against Garen is 51.36%.


Darius
the Hand of Noxus
Senna wins against Darius 47.97% of the time which is 5.70% lower against Darius than the average opponent.
After normalising both champions win rates Senna wins against Darius 3.39% less often than would be expected.
The average opponent winrate against Darius is 53.67%.


Mordekaiser
the Iron Revenant
Senna wins against Mordekaiser 50.24% of the time which is 0.01% higher against Mordekaiser than the average opponent.
After normalising both champions win rates Senna wins against Mordekaiser 2.32% more often than would be expected.
The average opponent winrate against Mordekaiser is 50.23%.


Teemo
the Swift Scout
Senna wins against Teemo 51.15% of the time which is 2.41% higher against Teemo than the average opponent.
After normalising both champions win rates Senna wins against Teemo 4.72% more often than would be expected.
The average opponent winrate against Teemo is 48.74%.


Sett
the Boss
Senna wins against Sett 51.90% of the time which is 2.03% higher against Sett than the average opponent.
After normalising both champions win rates Senna wins against Sett 4.34% more often than would be expected.
The average opponent winrate against Sett is 49.87%.