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: 943,349
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 middle Counters
Senna support on Patch 15.16 is the strongest counter to middle champions of Yone, Diana & Galio. While Senna support is countered most by middle champions of Katarina, Mel & Yasuo. Below is a detailed breakdown of Senna support counters against middle champions with a minimum of 100 games.
Katarina
la Daga Siniestra
Senna wins against Katarina 35.20% of the time which is 13.92% lower against Katarina than the average opponent.
After normalising both champions win rates Senna wins against Katarina 9.58% less often than would be expected.
The average opponent winrate against Katarina is 49.12%.
Mel
el Reflejo del Alma
Senna wins against Mel 42.11% of the time which is 11.01% lower against Mel than the average opponent.
After normalising both champions win rates Senna wins against Mel 6.66% less often than would be expected.
The average opponent winrate against Mel is 53.12%.
Yasuo
el Imperdonable
Senna wins against Yasuo 43.43% of the time which is 7.95% lower against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 3.60% less often than would be expected.
The average opponent winrate against Yasuo is 51.38%.
Zed
el Maestro de las Sombras
Senna wins against Zed 45.06% of the time which is 5.79% lower against Zed than the average opponent.
After normalising both champions win rates Senna wins against Zed 1.44% less often than would be expected.
The average opponent winrate against Zed is 50.85%.
Veigar
el Pequeño Maestro del Mal
Senna wins against Veigar 46.72% of the time which is 4.39% lower against Veigar than the average opponent.
After normalising both champions win rates Senna wins against Veigar 0.04% less often than would be expected.
The average opponent winrate against Veigar is 51.11%.
Malzahar
el Profeta del Vacío
Senna wins against Malzahar 46.72% of the time which is 3.17% lower against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 1.18% more often than would be expected.
The average opponent winrate against Malzahar is 49.89%.
Akali
la Asesina Furtiva
Senna wins against Akali 48.03% of the time which is 3.66% lower against Akali than the average opponent.
After normalising both champions win rates Senna wins against Akali 0.69% more often than would be expected.
The average opponent winrate against Akali is 51.69%.
Ahri
la Vastaya de Nueve Colas
Senna wins against Ahri 48.60% of the time which is 2.52% lower against Ahri than the average opponent.
After normalising both champions win rates Senna wins against Ahri 1.83% more often than would be expected.
The average opponent winrate against Ahri is 51.12%.
Galio
el Coloso
Senna wins against Galio 49.07% of the time which is 0.64% lower against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 3.71% more often than would be expected.
The average opponent winrate against Galio is 49.71%.
Diana
el Desdén de la Luna
Senna wins against Diana 51.00% of the time which is 1.93% higher against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 6.27% more often than would be expected.
The average opponent winrate against Diana is 49.07%.
Yone
el Imborrable
Senna wins against Yone 51.33% of the time which is 1.58% lower against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 2.77% more often than would be expected.
The average opponent winrate against Yone is 52.91%.










