

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: 537,860
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 support vs support Counters
Senna support on Patch 30 is the strongest counter to support champions of Karma, Nami & Nautilus. While Senna support is countered most by support champions of Bard, Sona & Alistar. Below is a detailed breakdown of Senna support counters against support champions with a minimum of 100 games.


Bard
the Wandering Caretaker
Senna wins against Bard 40.74% of the time which is 4.74% lower against Bard than the average opponent.
After normalising both champions win rates Senna wins against Bard 10.74% less often than would be expected.
The average opponent winrate against Bard is 45.48%.


Sona
Maven of the Strings
Senna wins against Sona 46.72% of the time which is 1.96% higher against Sona than the average opponent.
After normalising both champions win rates Senna wins against Sona 4.04% less often than would be expected.
The average opponent winrate against Sona is 44.76%.


Alistar
the Minotaur
Senna wins against Alistar 48.62% of the time which is 3.16% higher against Alistar than the average opponent.
After normalising both champions win rates Senna wins against Alistar 2.84% less often than would be expected.
The average opponent winrate against Alistar is 45.46%.


Rell
the Iron Maiden
Senna wins against Rell 51.40% of the time which is 5.71% higher against Rell than the average opponent.
After normalising both champions win rates Senna wins against Rell 0.29% less often than would be expected.
The average opponent winrate against Rell is 45.69%.


Janna
the Storm's Fury
Senna wins against Janna 51.97% of the time which is 6.68% higher against Janna than the average opponent.
After normalising both champions win rates Senna wins against Janna 0.68% more often than would be expected.
The average opponent winrate against Janna is 45.29%.


Lulu
the Fae Sorceress
Senna wins against Lulu 52.05% of the time which is 7.24% higher against Lulu than the average opponent.
After normalising both champions win rates Senna wins against Lulu 1.24% more often than would be expected.
The average opponent winrate against Lulu is 44.81%.


Nautilus
the Titan of the Depths
Senna wins against Nautilus 52.33% of the time which is 4.63% higher against Nautilus than the average opponent.
After normalising both champions win rates Senna wins against Nautilus 1.38% less often than would be expected.
The average opponent winrate against Nautilus is 47.70%.


Nami
the Tidecaller
Senna wins against Nami 53.04% of the time which is 7.27% higher against Nami than the average opponent.
After normalising both champions win rates Senna wins against Nami 1.27% more often than would be expected.
The average opponent winrate against Nami is 45.77%.


Karma
the Enlightened One
Senna wins against Karma 53.23% of the time which is 5.68% higher against Karma than the average opponent.
After normalising both champions win rates Senna wins against Karma 0.33% less often than would be expected.
The average opponent winrate against Karma is 47.55%.