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: 241,634,660
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.
Janna Counters
Janna middle vs jungle Counters
Presently there is insufficent games played by Janna middle on Patch 30 to determine the strongest jungle counters. A matchup requires a minimum of 100 games to be displayed.
Lee Sin
the Blind Monk
Janna wins against Lee Sin 38.12% of the time which is 14.53% lower against Lee Sin than the average opponent.
After normalising both champions win rates Janna wins against Lee Sin 6.34% less often than would be expected.
The average opponent winrate against Lee Sinis 52.65%.
Viego
The Ruined King
Janna wins against Viego 38.69% of the time which is 10.57% lower against Viego than the average opponent.
After normalising both champions win rates Janna wins against Viego 2.45% less often than would be expected.
The average opponent winrate against Viegois 49.26%.
Shaco
the Demon Jester
Janna wins against Shaco 43.00% of the time which is 6.95% lower against Shaco than the average opponent.
After normalising both champions win rates Janna wins against Shaco 1.19% more often than would be expected.
The average opponent winrate against Shacois 49.95%.
Master Yi
the Wuju Bladesman
Janna wins against Master Yi 43.12% of the time which is 7.51% lower against Master Yi than the average opponent.
After normalising both champions win rates Janna wins against Master Yi 0.65% more often than would be expected.
The average opponent winrate against Master Yiis 50.63%.