

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.
Unranked Champions Analysed: 604,205
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 jungle Counters
Presently there is insufficent games played by Senna support on Patch 15.17 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.


Master Yi
the Wuju Bladesman
Senna wins against Master Yi 43.00% of the time which is 9.36% lower against Master Yi than the average opponent.
After normalising both champions win rates Senna wins against Master Yi 7.48% less often than would be expected.
The average opponent winrate against Master Yi is 52.36%.


Kayn
the Shadow Reaper
Senna wins against Kayn 47.37% of the time which is 4.24% lower against Kayn than the average opponent.
After normalising both champions win rates Senna wins against Kayn 2.36% less often than would be expected.
The average opponent winrate against Kayn is 51.61%.


Viego
The Ruined King
Senna wins against Viego 48.23% of the time which is 1.99% higher against Viego than the average opponent.
After normalising both champions win rates Senna wins against Viego 3.86% more often than would be expected.
The average opponent winrate against Viego is 46.24%.


Lee Sin
the Blind Monk
Senna wins against Lee Sin 53.91% of the time which is 3.56% higher against Lee Sin than the average opponent.
After normalising both champions win rates Senna wins against Lee Sin 5.44% more often than would be expected.
The average opponent winrate against Lee Sin is 50.35%.