

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: 51,882,540
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 jungle Counters
Senna bottom on Patch 15.11 is the strongest counter to jungle champions of Galio, Kai'Sa & Camille. While Senna bottom is countered most by jungle champions of Yorick, Jarvan IV & Nocturne. Below is a detailed breakdown of Senna bottom counters against jungle champions with a minimum of 100 games.


Yorick
Pastor de Almas
Senna wins against Yorick 47.50% of the time which is 1.01% higher against Yorick than the average opponent.
After normalising both champions win rates Senna wins against Yorick 0.60% less often than would be expected.
The average opponent winrate against Yorick is 46.49%.


Jarvan IV
el Ejemplo de Demacia
Senna wins against Jarvan IV 48.53% of the time which is 0.41% higher against Jarvan IV than the average opponent.
After normalising both champions win rates Senna wins against Jarvan IV 1.20% less often than would be expected.
The average opponent winrate against Jarvan IV is 48.12%.


Nocturne
la Pesadilla Eterna
Senna wins against Nocturne 48.67% of the time which is 1.05% higher against Nocturne than the average opponent.
After normalising both champions win rates Senna wins against Nocturne 0.56% less often than would be expected.
The average opponent winrate against Nocturne is 47.62%.


Trundle
el Rey de los Troles
Senna wins against Trundle 48.82% of the time which is 1.50% higher against Trundle than the average opponent.
After normalising both champions win rates Senna wins against Trundle 0.11% less often than would be expected.
The average opponent winrate against Trundle is 47.32%.


Volibear
la Tormenta Implacable
Senna wins against Volibear 49.32% of the time which is 1.44% higher against Volibear than the average opponent.
After normalising both champions win rates Senna wins against Volibear 0.17% less often than would be expected.
The average opponent winrate against Volibear is 47.88%.


Briar
el Hambre Contenida
Senna wins against Briar 49.67% of the time which is 2.15% higher against Briar than the average opponent.
After normalising both champions win rates Senna wins against Briar 0.54% more often than would be expected.
The average opponent winrate against Briar is 47.52%.


Amumu
la Momia Triste
Senna wins against Amumu 49.80% of the time which is 1.45% higher against Amumu than the average opponent.
After normalising both champions win rates Senna wins against Amumu 0.16% less often than would be expected.
The average opponent winrate against Amumu is 48.35%.


Kha'Zix
el Saqueador del Vacío
Senna wins against Kha'Zix 49.86% of the time which is 0.14% higher against Kha'Zix than the average opponent.
After normalising both champions win rates Senna wins against Kha'Zix 1.47% less often than would be expected.
The average opponent winrate against Kha'Zix is 49.72%.


Warwick
la Furia Desatada de Zaun
Senna wins against Warwick 49.88% of the time which is 2.65% higher against Warwick than the average opponent.
After normalising both champions win rates Senna wins against Warwick 1.04% more often than would be expected.
The average opponent winrate against Warwick is 47.23%.


Morgana
la Desolada
Senna wins against Morgana 50.21% of the time which is 0.06% lower against Morgana than the average opponent.
After normalising both champions win rates Senna wins against Morgana 1.67% less often than would be expected.
The average opponent winrate against Morgana is 50.27%.


Diana
el Desdén de la Luna
Senna wins against Diana 50.30% of the time which is 1.23% higher against Diana than the average opponent.
After normalising both champions win rates Senna wins against Diana 0.38% less often than would be expected.
The average opponent winrate against Diana is 49.07%.


Zyra
el Despertar de las Espinas
Senna wins against Zyra 50.40% of the time which is 0.13% lower against Zyra than the average opponent.
After normalising both champions win rates Senna wins against Zyra 1.74% less often than would be expected.
The average opponent winrate against Zyra is 50.53%.


Ivern
el Árbol Padre
Senna wins against Ivern 50.44% of the time which is 0.79% higher against Ivern than the average opponent.
After normalising both champions win rates Senna wins against Ivern 0.82% less often than would be expected.
The average opponent winrate against Ivern is 49.65%.


Olaf
el Berserker
Senna wins against Olaf 50.45% of the time which is 1.30% higher against Olaf than the average opponent.
After normalising both champions win rates Senna wins against Olaf 0.31% less often than would be expected.
The average opponent winrate against Olaf is 49.15%.


Mordekaiser
el Renacido de Hierro
Senna wins against Mordekaiser 50.67% of the time which is 2.14% higher against Mordekaiser than the average opponent.
After normalising both champions win rates Senna wins against Mordekaiser 0.53% more often than would be expected.
The average opponent winrate against Mordekaiser is 48.53%.


Wukong
el Rey de los Monos
Senna wins against Wukong 50.68% of the time which is 2.08% higher against Wukong than the average opponent.
After normalising both champions win rates Senna wins against Wukong 0.47% more often than would be expected.
The average opponent winrate against Wukong is 48.60%.


Jax
el Maestro de Armas
Senna wins against Jax 50.77% of the time which is 1.56% higher against Jax than the average opponent.
After normalising both champions win rates Senna wins against Jax 0.05% less often than would be expected.
The average opponent winrate against Jax is 49.21%.


Maestro Yi
la Espada Wuju
Senna wins against Maestro Yi 51.06% of the time which is 1.66% higher against Maestro Yi than the average opponent.
After normalising both champions win rates Senna wins against Maestro Yi 0.05% more often than would be expected.
The average opponent winrate against Maestro Yi is 49.40%.


Ekko
el Joven que Fragmentó el Tiempo
Senna wins against Ekko 51.10% of the time which is 1.63% higher against Ekko than the average opponent.
After normalising both champions win rates Senna wins against Ekko 0.02% more often than would be expected.
The average opponent winrate against Ekko is 49.47%.


Xin Zhao
el Senescal de Demacia
Senna wins against Xin Zhao 51.19% of the time which is 1.95% higher against Xin Zhao than the average opponent.
After normalising both champions win rates Senna wins against Xin Zhao 0.34% more often than would be expected.
The average opponent winrate against Xin Zhao is 49.24%.


Shyvana
la Hija del Dragón
Senna wins against Shyvana 51.20% of the time which is 1.90% higher against Shyvana than the average opponent.
After normalising both champions win rates Senna wins against Shyvana 0.29% more often than would be expected.
The average opponent winrate against Shyvana is 49.30%.


Taliyah
la Tejedora de Piedra
Senna wins against Taliyah 51.27% of the time which is 0.38% lower against Taliyah than the average opponent.
After normalising both champions win rates Senna wins against Taliyah 1.99% less often than would be expected.
The average opponent winrate against Taliyah is 51.65%.


Naafiri
la Sabueso de las Cien Mordidas
Senna wins against Naafiri 51.34% of the time which is 1.62% higher against Naafiri than the average opponent.
After normalising both champions win rates Senna wins against Naafiri 0.01% more often than would be expected.
The average opponent winrate against Naafiri is 49.72%.


Viego
El Rey Arruinado
Senna wins against Viego 51.34% of the time which is 1.36% higher against Viego than the average opponent.
After normalising both champions win rates Senna wins against Viego 0.25% less often than would be expected.
The average opponent winrate against Viego is 49.98%.


Evelynn
Abrazo de la Agonía
Senna wins against Evelynn 51.37% of the time which is 0.96% higher against Evelynn than the average opponent.
After normalising both champions win rates Senna wins against Evelynn 0.65% less often than would be expected.
The average opponent winrate against Evelynn is 50.41%.


Ambessa
La Matriarca de la Guerra
Senna wins against Ambessa 51.37% of the time which is 1.42% lower against Ambessa than the average opponent.
After normalising both champions win rates Senna wins against Ambessa 3.02% less often than would be expected.
The average opponent winrate against Ambessa is 52.79%.


Kayn
el Segador Sombrío
Senna wins against Kayn 51.64% of the time which is 2.01% higher against Kayn than the average opponent.
After normalising both champions win rates Senna wins against Kayn 0.40% more often than would be expected.
The average opponent winrate against Kayn is 49.63%.


Talon
la Sombra de la Navaja
Senna wins against Talon 51.65% of the time which is 0.60% higher against Talon than the average opponent.
After normalising both champions win rates Senna wins against Talon 1.01% less often than would be expected.
The average opponent winrate against Talon is 51.05%.


Elise
la Reina de las Arañas
Senna wins against Elise 51.65% of the time which is 1.15% higher against Elise than the average opponent.
After normalising both champions win rates Senna wins against Elise 0.46% less often than would be expected.
The average opponent winrate against Elise is 50.50%.


Shaco
el Bufón Siniestro
Senna wins against Shaco 51.66% of the time which is 0.72% higher against Shaco than the average opponent.
After normalising both champions win rates Senna wins against Shaco 0.89% less often than would be expected.
The average opponent winrate against Shaco is 50.94%.


Dr. Mundo
el Loco de Zaun
Senna wins against Dr. Mundo 51.68% of the time which is 3.45% higher against Dr. Mundo than the average opponent.
After normalising both champions win rates Senna wins against Dr. Mundo 1.84% more often than would be expected.
The average opponent winrate against Dr. Mundo is 48.23%.


Gwen
La Costurera Sagrada
Senna wins against Gwen 51.77% of the time which is 0.46% higher against Gwen than the average opponent.
After normalising both champions win rates Senna wins against Gwen 1.15% less often than would be expected.
The average opponent winrate against Gwen is 51.31%.


Nunu y Willump
el Niño y su Yeti
Senna wins against Nunu y Willump 51.80% of the time which is 1.69% higher against Nunu y Willump than the average opponent.
After normalising both champions win rates Senna wins against Nunu y Willump 0.08% more often than would be expected.
The average opponent winrate against Nunu y Willump is 50.11%.


Graves
el Forajido
Senna wins against Graves 51.90% of the time which is 1.61% higher against Graves than the average opponent.
After normalising both champions win rates Senna wins against Graves 0.00% less often than would be expected.
The average opponent winrate against Graves is 50.29%.


Nasus
el Curador de las Arenas
Senna wins against Nasus 52.11% of the time which is 2.00% higher against Nasus than the average opponent.
After normalising both champions win rates Senna wins against Nasus 0.39% more often than would be expected.
The average opponent winrate against Nasus is 50.11%.


Hecarim
la Sombra de la Guerra
Senna wins against Hecarim 52.35% of the time which is 0.99% higher against Hecarim than the average opponent.
After normalising both champions win rates Senna wins against Hecarim 0.62% less often than would be expected.
The average opponent winrate against Hecarim is 51.36%.


Pantheon
la Lanza Inquebrantable
Senna wins against Pantheon 52.50% of the time which is 2.76% higher against Pantheon than the average opponent.
After normalising both champions win rates Senna wins against Pantheon 1.15% more often than would be expected.
The average opponent winrate against Pantheon is 49.74%.


Zac
el Arma Secreta
Senna wins against Zac 52.50% of the time which is 1.48% higher against Zac than the average opponent.
After normalising both champions win rates Senna wins against Zac 0.13% less often than would be expected.
The average opponent winrate against Zac is 51.02%.


Lillia
La Flor Tímida
Senna wins against Lillia 52.53% of the time which is 2.53% higher against Lillia than the average opponent.
After normalising both champions win rates Senna wins against Lillia 0.92% more often than would be expected.
The average opponent winrate against Lillia is 50.00%.


Zed
el Maestro de las Sombras
Senna wins against Zed 52.55% of the time which is 0.39% higher against Zed than the average opponent.
After normalising both champions win rates Senna wins against Zed 1.21% less often than would be expected.
The average opponent winrate against Zed is 52.16%.


Rammus
el Armadurillo
Senna wins against Rammus 52.56% of the time which is 3.92% higher against Rammus than the average opponent.
After normalising both champions win rates Senna wins against Rammus 2.31% more often than would be expected.
The average opponent winrate against Rammus is 48.64%.


Bel'Veth
la Emperatriz del Vacío
Senna wins against Bel'Veth 52.58% of the time which is 1.65% higher against Bel'Veth than the average opponent.
After normalising both champions win rates Senna wins against Bel'Veth 0.04% more often than would be expected.
The average opponent winrate against Bel'Veth is 50.93%.


Udyr
el Cambiapieles
Senna wins against Udyr 52.68% of the time which is 2.23% higher against Udyr than the average opponent.
After normalising both champions win rates Senna wins against Udyr 0.62% more often than would be expected.
The average opponent winrate against Udyr is 50.45%.


Poppy
la Guardiana del Martillo
Senna wins against Poppy 52.69% of the time which is 3.09% higher against Poppy than the average opponent.
After normalising both champions win rates Senna wins against Poppy 1.48% more often than would be expected.
The average opponent winrate against Poppy is 49.60%.


Teemo
el Explorador Veloz
Senna wins against Teemo 52.83% of the time which is 4.10% higher against Teemo than the average opponent.
After normalising both champions win rates Senna wins against Teemo 2.49% more often than would be expected.
The average opponent winrate against Teemo is 48.73%.


Fiddlesticks
el Terror Ancestral
Senna wins against Fiddlesticks 52.89% of the time which is 2.63% higher against Fiddlesticks than the average opponent.
After normalising both champions win rates Senna wins against Fiddlesticks 1.02% more often than would be expected.
The average opponent winrate against Fiddlesticks is 50.26%.


Darius
la mano de Noxus
Senna wins against Darius 52.93% of the time which is 2.50% higher against Darius than the average opponent.
After normalising both champions win rates Senna wins against Darius 0.89% more often than would be expected.
The average opponent winrate against Darius is 50.43%.


Lee Sin
el Monje Ciego
Senna wins against Lee Sin 53.11% of the time which is 1.07% higher against Lee Sin than the average opponent.
After normalising both champions win rates Senna wins against Lee Sin 0.54% less often than would be expected.
The average opponent winrate against Lee Sin is 52.04%.


Rek'Sai
la Excavadora del Vacío
Senna wins against Rek'Sai 53.11% of the time which is 1.64% higher against Rek'Sai than the average opponent.
After normalising both champions win rates Senna wins against Rek'Sai 0.03% more often than would be expected.
The average opponent winrate against Rek'Sai is 51.47%.


Vi
la Vigilante de Piltóver
Senna wins against Vi 53.12% of the time which is 1.60% higher against Vi than the average opponent.
After normalising both champions win rates Senna wins against Vi 0.01% less often than would be expected.
The average opponent winrate against Vi is 51.52%.


Kindred
los Cazadores Eternos
Senna wins against Kindred 53.32% of the time which is 1.81% higher against Kindred than the average opponent.
After normalising both champions win rates Senna wins against Kindred 0.20% more often than would be expected.
The average opponent winrate against Kindred is 51.51%.


Shen
el Ojo del Crepúsculo
Senna wins against Shen 53.56% of the time which is 1.42% higher against Shen than the average opponent.
After normalising both champions win rates Senna wins against Shen 0.18% less often than would be expected.
The average opponent winrate against Shen is 52.14%.


Sett
El Jefe
Senna wins against Sett 53.65% of the time which is 3.22% higher against Sett than the average opponent.
After normalising both champions win rates Senna wins against Sett 1.61% more often than would be expected.
The average opponent winrate against Sett is 50.43%.


Gragas
el Revoltoso
Senna wins against Gragas 53.66% of the time which is 0.94% higher against Gragas than the average opponent.
After normalising both champions win rates Senna wins against Gragas 0.66% less often than would be expected.
The average opponent winrate against Gragas is 52.72%.


Sion
el Coloso no Muerto
Senna wins against Sion 53.74% of the time which is 3.04% higher against Sion than the average opponent.
After normalising both champions win rates Senna wins against Sion 1.43% more often than would be expected.
The average opponent winrate against Sion is 50.70%.


Karthus
el Canto de la Muerte
Senna wins against Karthus 53.87% of the time which is 1.77% higher against Karthus than the average opponent.
After normalising both champions win rates Senna wins against Karthus 0.17% more often than would be expected.
The average opponent winrate against Karthus is 52.10%.


Sejuani
la Furia del Norte
Senna wins against Sejuani 54.21% of the time which is 3.07% higher against Sejuani than the average opponent.
After normalising both champions win rates Senna wins against Sejuani 1.46% more often than would be expected.
The average opponent winrate against Sejuani is 51.14%.


Rumble
la Amenaza Mecánica
Senna wins against Rumble 54.37% of the time which is 1.98% higher against Rumble than the average opponent.
After normalising both champions win rates Senna wins against Rumble 0.38% more often than would be expected.
The average opponent winrate against Rumble is 52.39%.


Jayce
el Defensor del Mañana
Senna wins against Jayce 54.46% of the time which is 2.71% lower against Jayce than the average opponent.
After normalising both champions win rates Senna wins against Jayce 4.28% less often than would be expected.
The average opponent winrate against Jayce is 57.17%.


Rengar
el Orgullo Acechante
Senna wins against Rengar 54.66% of the time which is 0.31% higher against Rengar than the average opponent.
After normalising both champions win rates Senna wins against Rengar 1.28% less often than would be expected.
The average opponent winrate against Rengar is 54.35%.


Cho'Gath
el Terror del Vacío
Senna wins against Cho'Gath 54.68% of the time which is 2.57% higher against Cho'Gath than the average opponent.
After normalising both champions win rates Senna wins against Cho'Gath 0.97% more often than would be expected.
The average opponent winrate against Cho'Gath is 52.11%.


Brand
la Venganza Ardiente
Senna wins against Brand 54.72% of the time which is 1.91% higher against Brand than the average opponent.
After normalising both champions win rates Senna wins against Brand 0.31% more often than would be expected.
The average opponent winrate against Brand is 52.81%.


Tryndamere
el Rey Bárbaro
Senna wins against Tryndamere 54.75% of the time which is 3.30% higher against Tryndamere than the average opponent.
After normalising both champions win rates Senna wins against Tryndamere 1.69% more often than would be expected.
The average opponent winrate against Tryndamere is 51.45%.


Taric
el Escudo de Valoran
Senna wins against Taric 54.86% of the time which is 1.37% higher against Taric than the average opponent.
After normalising both champions win rates Senna wins against Taric 0.23% less often than would be expected.
The average opponent winrate against Taric is 53.49%.


Qiyana
La Emperatriz de los Elementos
Senna wins against Qiyana 54.90% of the time which is 1.43% higher against Qiyana than the average opponent.
After normalising both champions win rates Senna wins against Qiyana 0.17% less often than would be expected.
The average opponent winrate against Qiyana is 53.47%.


Nidalee
la Cazadora Salvaje
Senna wins against Nidalee 55.47% of the time which is 0.95% higher against Nidalee than the average opponent.
After normalising both champions win rates Senna wins against Nidalee 0.64% less often than would be expected.
The average opponent winrate against Nidalee is 54.52%.


Maokai
el Treant Retorcido
Senna wins against Maokai 55.53% of the time which is 3.12% higher against Maokai than the average opponent.
After normalising both champions win rates Senna wins against Maokai 1.52% more often than would be expected.
The average opponent winrate against Maokai is 52.41%.


Aurelion Sol
el Forjador de Estrellas
Senna wins against Aurelion Sol 55.64% of the time which is 0.10% lower against Aurelion Sol than the average opponent.
After normalising both champions win rates Senna wins against Aurelion Sol 1.68% less often than would be expected.
The average opponent winrate against Aurelion Sol is 55.74%.


Sylas
el Usurpador
Senna wins against Sylas 55.93% of the time which is 1.46% higher against Sylas than the average opponent.
After normalising both champions win rates Senna wins against Sylas 0.13% less often than would be expected.
The average opponent winrate against Sylas is 54.47%.


Vayne
la Cazadora Nocturna
Senna wins against Vayne 55.96% of the time which is 0.46% lower against Vayne than the average opponent.
After normalising both champions win rates Senna wins against Vayne 2.04% less often than would be expected.
The average opponent winrate against Vayne is 56.42%.


Neeko
la Camaleón Curiosa
Senna wins against Neeko 57.44% of the time which is 2.82% higher against Neeko than the average opponent.
After normalising both champions win rates Senna wins against Neeko 1.23% more often than would be expected.
The average opponent winrate against Neeko is 54.62%.


Singed
el Químico Loco
Senna wins against Singed 57.88% of the time which is 3.00% higher against Singed than the average opponent.
After normalising both champions win rates Senna wins against Singed 1.41% more often than would be expected.
The average opponent winrate against Singed is 54.88%.


Twitch
la Rata Mutante
Senna wins against Twitch 57.96% of the time which is 1.32% lower against Twitch than the average opponent.
After normalising both champions win rates Senna wins against Twitch 2.86% less often than would be expected.
The average opponent winrate against Twitch is 59.28%.


Skarner
El Soberano Primordial
Senna wins against Skarner 58.37% of the time which is 1.99% higher against Skarner than the average opponent.
After normalising both champions win rates Senna wins against Skarner 0.41% more often than would be expected.
The average opponent winrate against Skarner is 56.38%.


Yone
el Imborrable
Senna wins against Yone 58.92% of the time which is 0.98% higher against Yone than the average opponent.
After normalising both champions win rates Senna wins against Yone 0.58% less often than would be expected.
The average opponent winrate against Yone is 57.94%.


Twisted Fate
el Maestro de las Cartas
Senna wins against Twisted Fate 59.32% of the time which is 2.24% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Senna wins against Twisted Fate 3.75% less often than would be expected.
The average opponent winrate against Twisted Fate is 61.56%.


Aatrox
la Espada Darkin
Senna wins against Aatrox 59.46% of the time which is 1.41% higher against Aatrox than the average opponent.
After normalising both champions win rates Senna wins against Aatrox 0.15% less often than would be expected.
The average opponent winrate against Aatrox is 58.05%.


Urgot
el Temerario
Senna wins against Urgot 59.49% of the time which is 5.84% higher against Urgot than the average opponent.
After normalising both champions win rates Senna wins against Urgot 4.24% more often than would be expected.
The average opponent winrate against Urgot is 53.65%.


Garen
el Poder de Demacia
Senna wins against Garen 59.82% of the time which is 0.16% lower against Garen than the average opponent.
After normalising both champions win rates Senna wins against Garen 1.70% less often than would be expected.
The average opponent winrate against Garen is 59.98%.


Malzahar
el Profeta del Vacío
Senna wins against Malzahar 60.00% of the time which is 0.23% lower against Malzahar than the average opponent.
After normalising both champions win rates Senna wins against Malzahar 1.76% less often than would be expected.
The average opponent winrate against Malzahar is 60.23%.


Yasuo
el Imperdonable
Senna wins against Yasuo 61.39% of the time which is 0.47% lower against Yasuo than the average opponent.
After normalising both champions win rates Senna wins against Yasuo 1.98% less often than would be expected.
The average opponent winrate against Yasuo is 61.86%.


Quinn
las Alas de Demacia
Senna wins against Quinn 61.73% of the time which is 5.36% higher against Quinn than the average opponent.
After normalising both champions win rates Senna wins against Quinn 3.78% more often than would be expected.
The average opponent winrate against Quinn is 56.37%.


Malphite
el Fragmento del Monolito
Senna wins against Malphite 62.14% of the time which is 5.97% higher against Malphite than the average opponent.
After normalising both champions win rates Senna wins against Malphite 4.39% more often than would be expected.
The average opponent winrate against Malphite is 56.17%.


Riven
la Desterrada
Senna wins against Riven 63.00% of the time which is 1.78% higher against Riven than the average opponent.
After normalising both champions win rates Senna wins against Riven 0.26% more often than would be expected.
The average opponent winrate against Riven is 61.22%.


Nautilus
el Titán de las Profundidades
Senna wins against Nautilus 63.30% of the time which is 4.12% higher against Nautilus than the average opponent.
After normalising both champions win rates Senna wins against Nautilus 2.57% more often than would be expected.
The average opponent winrate against Nautilus is 59.18%.


Kayle
la Justiciera
Senna wins against Kayle 64.66% of the time which is 10.99% higher against Kayle than the average opponent.
After normalising both champions win rates Senna wins against Kayle 9.39% more often than would be expected.
The average opponent winrate against Kayle is 53.67%.


Camille
la Sombra de Acero
Senna wins against Camille 65.41% of the time which is 7.55% higher against Camille than the average opponent.
After normalising both champions win rates Senna wins against Camille 5.99% more often than would be expected.
The average opponent winrate against Camille is 57.86%.


Kai'Sa
La Hija del Vacío
Senna wins against Kai'Sa 65.49% of the time which is 7.51% higher against Kai'Sa than the average opponent.
After normalising both champions win rates Senna wins against Kai'Sa 5.95% more often than would be expected.
The average opponent winrate against Kai'Sa is 57.98%.


Galio
el Coloso
Senna wins against Galio 66.09% of the time which is 8.32% higher against Galio than the average opponent.
After normalising both champions win rates Senna wins against Galio 6.76% more often than would be expected.
The average opponent winrate against Galio is 57.77%.