

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: 118,041,050
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.


Cassiopeia Counters
Cassiopeia middle vs support Counters
Cassiopeia middle on Patch 15.3 is the strongest counter to support champions of Nunu & Willump, Caitlyn & Ezreal. While Cassiopeia middle is countered most by support champions of Singed, Lee Sin & Teemo. Below is a detailed breakdown of Cassiopeia middle counters against support champions with a minimum of 100 games.


Singed
Dược Sĩ Điên
Cassiopeia wins against Singed 43.90% of the time which is 8.50% lower against Singed than the average opponent.
After normalising both champions win rates Cassiopeia wins against Singed 9.78% less often than would be expected.
The average opponent winrate against Singed is 52.40%.


Lee Sin
Thầy Tu Mù
Cassiopeia wins against Lee Sin 44.39% of the time which is 11.36% lower against Lee Sin than the average opponent.
After normalising both champions win rates Cassiopeia wins against Lee Sin 12.62% less often than would be expected.
The average opponent winrate against Lee Sin is 55.75%.


Teemo
Trinh Sát Nhanh Nhẹn
Cassiopeia wins against Teemo 47.04% of the time which is 0.83% lower against Teemo than the average opponent.
After normalising both champions win rates Cassiopeia wins against Teemo 2.11% less often than would be expected.
The average opponent winrate against Teemo is 47.87%.


Twisted Fate
Thần Bài
Cassiopeia wins against Twisted Fate 47.34% of the time which is 5.57% lower against Twisted Fate than the average opponent.
After normalising both champions win rates Cassiopeia wins against Twisted Fate 6.84% less often than would be expected.
The average opponent winrate against Twisted Fate is 52.91%.


Xerath
Pháp Sư Thăng Hoa
Cassiopeia wins against Xerath 47.53% of the time which is 1.87% lower against Xerath than the average opponent.
After normalising both champions win rates Cassiopeia wins against Xerath 3.15% less often than would be expected.
The average opponent winrate against Xerath is 49.40%.


Vel'Koz
Con Mắt Hư Không
Cassiopeia wins against Vel'Koz 47.60% of the time which is 0.93% lower against Vel'Koz than the average opponent.
After normalising both champions win rates Cassiopeia wins against Vel'Koz 2.21% less often than would be expected.
The average opponent winrate against Vel'Koz is 48.53%.


Ziggs
Chuyên Gia Chất Nổ
Cassiopeia wins against Ziggs 47.73% of the time which is 5.07% lower against Ziggs than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ziggs 6.34% less often than would be expected.
The average opponent winrate against Ziggs is 52.80%.


Quinn
Đôi Cánh Demacia
Cassiopeia wins against Quinn 47.79% of the time which is 2.79% lower against Quinn than the average opponent.
After normalising both champions win rates Cassiopeia wins against Quinn 4.07% less often than would be expected.
The average opponent winrate against Quinn is 50.58%.


Brand
Thần Lửa
Cassiopeia wins against Brand 47.82% of the time which is 1.31% lower against Brand than the average opponent.
After normalising both champions win rates Cassiopeia wins against Brand 2.59% less often than would be expected.
The average opponent winrate against Brand is 49.13%.


Janna
Cơn Thịnh Nộ Của Bão Tố
Cassiopeia wins against Janna 48.89% of the time which is 0.15% higher against Janna than the average opponent.
After normalising both champions win rates Cassiopeia wins against Janna 1.13% less often than would be expected.
The average opponent winrate against Janna is 48.74%.


Poppy
Người Giữ Búa
Cassiopeia wins against Poppy 49.04% of the time which is 0.55% lower against Poppy than the average opponent.
After normalising both champions win rates Cassiopeia wins against Poppy 1.83% less often than would be expected.
The average opponent winrate against Poppy is 49.59%.


Nami
Nàng Tiên Cá
Cassiopeia wins against Nami 49.13% of the time which is 0.91% higher against Nami than the average opponent.
After normalising both champions win rates Cassiopeia wins against Nami 0.37% less often than would be expected.
The average opponent winrate against Nami is 48.22%.


Cho'Gath
Quái Vật Hư Không
Cassiopeia wins against Cho'Gath 49.17% of the time which is 2.16% lower against Cho'Gath than the average opponent.
After normalising both champions win rates Cassiopeia wins against Cho'Gath 3.44% less often than would be expected.
The average opponent winrate against Cho'Gath is 51.33%.


Fiddlesticks
Nỗi Sợ Viễn Cổ
Cassiopeia wins against Fiddlesticks 49.18% of the time which is 1.27% higher against Fiddlesticks than the average opponent.
After normalising both champions win rates Cassiopeia wins against Fiddlesticks 0.01% less often than would be expected.
The average opponent winrate against Fiddlesticks is 47.91%.


Zyra
Gai Nổi Loạn
Cassiopeia wins against Zyra 49.19% of the time which is 0.92% higher against Zyra than the average opponent.
After normalising both champions win rates Cassiopeia wins against Zyra 0.36% less often than would be expected.
The average opponent winrate against Zyra is 48.27%.


Milio
Ngọn Lửa Dịu Êm
Cassiopeia wins against Milio 49.29% of the time which is 1.20% higher against Milio than the average opponent.
After normalising both champions win rates Cassiopeia wins against Milio 0.08% less often than would be expected.
The average opponent winrate against Milio is 48.09%.


Heimerdinger
Nhà Phát Minh Lỗi Lạc
Cassiopeia wins against Heimerdinger 49.54% of the time which is 0.52% higher against Heimerdinger than the average opponent.
After normalising both champions win rates Cassiopeia wins against Heimerdinger 0.76% less often than would be expected.
The average opponent winrate against Heimerdinger is 49.02%.


Morgana
Thiên Thần Sa Ngã
Cassiopeia wins against Morgana 49.56% of the time which is 0.74% higher against Morgana than the average opponent.
After normalising both champions win rates Cassiopeia wins against Morgana 0.54% less often than would be expected.
The average opponent winrate against Morgana is 48.82%.


Nidalee
Nữ Thợ Săn Hóa Thú
Cassiopeia wins against Nidalee 49.73% of the time which is 2.12% lower against Nidalee than the average opponent.
After normalising both champions win rates Cassiopeia wins against Nidalee 3.40% less often than would be expected.
The average opponent winrate against Nidalee is 51.85%.


Ahri
Hồ Ly Chín Đuôi
Cassiopeia wins against Ahri 49.74% of the time which is 2.36% lower against Ahri than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ahri 3.64% less often than would be expected.
The average opponent winrate against Ahri is 52.10%.


Zoe
Bậc Thầy Biến Ảo
Cassiopeia wins against Zoe 50.00% of the time which is 0.74% lower against Zoe than the average opponent.
After normalising both champions win rates Cassiopeia wins against Zoe 2.02% less often than would be expected.
The average opponent winrate against Zoe is 50.74%.


Veigar
Bậc Thầy Tiểu Quỷ
Cassiopeia wins against Veigar 50.21% of the time which is 1.82% lower against Veigar than the average opponent.
After normalising both champions win rates Cassiopeia wins against Veigar 3.10% less often than would be expected.
The average opponent winrate against Veigar is 52.03%.


Shaco
Tên Hề Quỷ
Cassiopeia wins against Shaco 50.31% of the time which is 2.03% higher against Shaco than the average opponent.
After normalising both champions win rates Cassiopeia wins against Shaco 0.75% more often than would be expected.
The average opponent winrate against Shaco is 48.28%.


Lulu
Pháp Sư Tinh Linh
Cassiopeia wins against Lulu 50.43% of the time which is 1.97% higher against Lulu than the average opponent.
After normalising both champions win rates Cassiopeia wins against Lulu 0.69% more often than would be expected.
The average opponent winrate against Lulu is 48.46%.


Sylas
Kẻ Phá Xiềng
Cassiopeia wins against Sylas 50.43% of the time which is 0.88% lower against Sylas than the average opponent.
After normalising both champions win rates Cassiopeia wins against Sylas 2.16% less often than would be expected.
The average opponent winrate against Sylas is 51.31%.


Karma
Kẻ Được Khai Sáng
Cassiopeia wins against Karma 50.55% of the time which is 1.02% higher against Karma than the average opponent.
After normalising both champions win rates Cassiopeia wins against Karma 0.26% less often than would be expected.
The average opponent winrate against Karma is 49.53%.


Lux
Tiểu Thư Ánh Sáng
Cassiopeia wins against Lux 50.59% of the time which is 0.67% higher against Lux than the average opponent.
After normalising both champions win rates Cassiopeia wins against Lux 0.61% less often than would be expected.
The average opponent winrate against Lux is 49.92%.


Zilean
Giám Hộ Thời Gian
Cassiopeia wins against Zilean 50.69% of the time which is 1.63% higher against Zilean than the average opponent.
After normalising both champions win rates Cassiopeia wins against Zilean 0.35% more often than would be expected.
The average opponent winrate against Zilean is 49.06%.


Annie
Đứa Trẻ Bóng Tối
Cassiopeia wins against Annie 50.75% of the time which is 1.01% higher against Annie than the average opponent.
After normalising both champions win rates Cassiopeia wins against Annie 0.27% less often than would be expected.
The average opponent winrate against Annie is 49.74%.


Taric
Tấm Khiên Valoran
Cassiopeia wins against Taric 50.76% of the time which is 3.57% higher against Taric than the average opponent.
After normalising both champions win rates Cassiopeia wins against Taric 2.29% more often than would be expected.
The average opponent winrate against Taric is 47.19%.


Maokai
Ma Cây
Cassiopeia wins against Maokai 50.79% of the time which is 1.93% higher against Maokai than the average opponent.
After normalising both champions win rates Cassiopeia wins against Maokai 0.65% more often than would be expected.
The average opponent winrate against Maokai is 48.86%.


Sona
Đại Cầm Nữ
Cassiopeia wins against Sona 50.85% of the time which is 2.40% higher against Sona than the average opponent.
After normalising both champions win rates Cassiopeia wins against Sona 1.12% more often than would be expected.
The average opponent winrate against Sona is 48.45%.


Pyke
Sát Thủ Vùng Nước Đỏ
Cassiopeia wins against Pyke 50.86% of the time which is 1.10% lower against Pyke than the average opponent.
After normalising both champions win rates Cassiopeia wins against Pyke 2.38% less often than would be expected.
The average opponent winrate against Pyke is 51.96%.


Senna
Người Cứu Chuộc
Cassiopeia wins against Senna 51.07% of the time which is 0.99% higher against Senna than the average opponent.
After normalising both champions win rates Cassiopeia wins against Senna 0.29% less often than would be expected.
The average opponent winrate against Senna is 50.08%.


Braum
Trái Tim của Freljord
Cassiopeia wins against Braum 51.09% of the time which is 2.01% higher against Braum than the average opponent.
After normalising both champions win rates Cassiopeia wins against Braum 0.73% more often than would be expected.
The average opponent winrate against Braum is 49.08%.


Soraka
Tinh Nữ
Cassiopeia wins against Soraka 51.09% of the time which is 2.05% higher against Soraka than the average opponent.
After normalising both champions win rates Cassiopeia wins against Soraka 0.77% more often than would be expected.
The average opponent winrate against Soraka is 49.04%.


LeBlanc
Kẻ Lừa Đảo
Cassiopeia wins against LeBlanc 51.11% of the time which is 1.16% higher against LeBlanc than the average opponent.
After normalising both champions win rates Cassiopeia wins against LeBlanc 0.12% less often than would be expected.
The average opponent winrate against LeBlanc is 49.95%.


Thresh
Cai Ngục Xiềng Xích
Cassiopeia wins against Thresh 51.11% of the time which is 1.40% higher against Thresh than the average opponent.
After normalising both champions win rates Cassiopeia wins against Thresh 0.12% more often than would be expected.
The average opponent winrate against Thresh is 49.71%.


Jarvan IV
Biểu Tượng Của Demacia
Cassiopeia wins against Jarvan IV 51.23% of the time which is 0.98% higher against Jarvan IV than the average opponent.
After normalising both champions win rates Cassiopeia wins against Jarvan IV 0.30% less often than would be expected.
The average opponent winrate against Jarvan IV is 50.25%.


Amumu
Xác Ướp U Sầu
Cassiopeia wins against Amumu 51.37% of the time which is 1.40% higher against Amumu than the average opponent.
After normalising both champions win rates Cassiopeia wins against Amumu 0.12% more often than would be expected.
The average opponent winrate against Amumu is 49.97%.


Vex
Pháp Sư Khó Chịu
Cassiopeia wins against Vex 51.47% of the time which is 0.63% lower against Vex than the average opponent.
After normalising both champions win rates Cassiopeia wins against Vex 1.91% less often than would be expected.
The average opponent winrate against Vex is 52.10%.


Leona
Bình Minh Rực Rỡ
Cassiopeia wins against Leona 51.50% of the time which is 1.41% higher against Leona than the average opponent.
After normalising both champions win rates Cassiopeia wins against Leona 0.13% more often than would be expected.
The average opponent winrate against Leona is 50.09%.


Pantheon
Mũi Giáo Bất Diệt
Cassiopeia wins against Pantheon 51.55% of the time which is 1.38% higher against Pantheon than the average opponent.
After normalising both champions win rates Cassiopeia wins against Pantheon 0.10% more often than would be expected.
The average opponent winrate against Pantheon is 50.17%.


Seraphine
Ca Sĩ Mộng Mơ
Cassiopeia wins against Seraphine 51.67% of the time which is 0.64% higher against Seraphine than the average opponent.
After normalising both champions win rates Cassiopeia wins against Seraphine 0.64% less often than would be expected.
The average opponent winrate against Seraphine is 51.03%.


Renata Glasc
Bà Trùm Thành Zaun
Cassiopeia wins against Renata Glasc 51.69% of the time which is 1.16% higher against Renata Glasc than the average opponent.
After normalising both champions win rates Cassiopeia wins against Renata Glasc 0.12% less often than would be expected.
The average opponent winrate against Renata Glasc is 50.53%.


Swain
Nguyên Soái Noxus
Cassiopeia wins against Swain 51.75% of the time which is 2.17% higher against Swain than the average opponent.
After normalising both champions win rates Cassiopeia wins against Swain 0.89% more often than would be expected.
The average opponent winrate against Swain is 49.58%.


Hwei
Họa Sĩ Vạn Cảnh
Cassiopeia wins against Hwei 51.82% of the time which is 0.79% higher against Hwei than the average opponent.
After normalising both champions win rates Cassiopeia wins against Hwei 0.49% less often than would be expected.
The average opponent winrate against Hwei is 51.03%.


Mel
Ảnh Chiếu Của Tâm Hồn
Cassiopeia wins against Mel 51.89% of the time which is 0.93% higher against Mel than the average opponent.
After normalising both champions win rates Cassiopeia wins against Mel 0.35% less often than would be expected.
The average opponent winrate against Mel is 50.96%.


Elise
Nữ Hoàng Nhền Nhện
Cassiopeia wins against Elise 52.02% of the time which is 1.88% higher against Elise than the average opponent.
After normalising both champions win rates Cassiopeia wins against Elise 0.60% more often than would be expected.
The average opponent winrate against Elise is 50.14%.


Tahm Kench
Thủy Quái Đại Vương
Cassiopeia wins against Tahm Kench 52.21% of the time which is 2.32% higher against Tahm Kench than the average opponent.
After normalising both champions win rates Cassiopeia wins against Tahm Kench 1.04% more often than would be expected.
The average opponent winrate against Tahm Kench is 49.89%.


Rell
Nữ Kỵ Sĩ Thép
Cassiopeia wins against Rell 52.25% of the time which is 2.49% higher against Rell than the average opponent.
After normalising both champions win rates Cassiopeia wins against Rell 1.21% more often than would be expected.
The average opponent winrate against Rell is 49.76%.


Sion
Chiến Binh Bất Tử
Cassiopeia wins against Sion 52.31% of the time which is 1.98% higher against Sion than the average opponent.
After normalising both champions win rates Cassiopeia wins against Sion 0.70% more often than would be expected.
The average opponent winrate against Sion is 50.33%.


Malphite
Mảnh Vỡ Thiên Thạch
Cassiopeia wins against Malphite 52.52% of the time which is 0.91% higher against Malphite than the average opponent.
After normalising both champions win rates Cassiopeia wins against Malphite 0.37% less often than would be expected.
The average opponent winrate against Malphite is 51.61%.


Alistar
Quái Vật Đầu Bò
Cassiopeia wins against Alistar 52.90% of the time which is 2.05% higher against Alistar than the average opponent.
After normalising both champions win rates Cassiopeia wins against Alistar 0.77% more often than would be expected.
The average opponent winrate against Alistar is 50.85%.


Rammus
Tê Tê Gai
Cassiopeia wins against Rammus 52.94% of the time which is 3.80% higher against Rammus than the average opponent.
After normalising both champions win rates Cassiopeia wins against Rammus 2.52% more often than would be expected.
The average opponent winrate against Rammus is 49.14%.


Malzahar
Tiên Tri Hư Không
Cassiopeia wins against Malzahar 53.10% of the time which is 0.47% lower against Malzahar than the average opponent.
After normalising both champions win rates Cassiopeia wins against Malzahar 1.74% less often than would be expected.
The average opponent winrate against Malzahar is 53.57%.


Sett
Đại Ca
Cassiopeia wins against Sett 53.21% of the time which is 1.93% higher against Sett than the average opponent.
After normalising both champions win rates Cassiopeia wins against Sett 0.65% more often than would be expected.
The average opponent winrate against Sett is 51.28%.


Shen
Mắt Hoàng Hôn
Cassiopeia wins against Shen 53.23% of the time which is 3.66% higher against Shen than the average opponent.
After normalising both champions win rates Cassiopeia wins against Shen 2.38% more often than would be expected.
The average opponent winrate against Shen is 49.57%.


Bard
Ông Bụt Vũ Trụ
Cassiopeia wins against Bard 53.37% of the time which is 3.18% higher against Bard than the average opponent.
After normalising both champions win rates Cassiopeia wins against Bard 1.90% more often than would be expected.
The average opponent winrate against Bard is 50.19%.


Yuumi
Cô Mèo Ma Thuật
Cassiopeia wins against Yuumi 53.38% of the time which is 2.78% higher against Yuumi than the average opponent.
After normalising both champions win rates Cassiopeia wins against Yuumi 1.50% more often than would be expected.
The average opponent winrate against Yuumi is 50.60%.


Ivern
Thụ Thần Thân Thiện
Cassiopeia wins against Ivern 53.55% of the time which is 0.26% higher against Ivern than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ivern 1.01% less often than would be expected.
The average opponent winrate against Ivern is 53.29%.


Rakan
Anh Chàng Quyến Rũ
Cassiopeia wins against Rakan 53.86% of the time which is 2.63% higher against Rakan than the average opponent.
After normalising both champions win rates Cassiopeia wins against Rakan 1.35% more often than would be expected.
The average opponent winrate against Rakan is 51.23%.


Galio
Vệ Thần Khổng Lồ
Cassiopeia wins against Galio 53.94% of the time which is 3.85% higher against Galio than the average opponent.
After normalising both champions win rates Cassiopeia wins against Galio 2.57% more often than would be expected.
The average opponent winrate against Galio is 50.09%.


Ashe
Cung Băng
Cassiopeia wins against Ashe 54.00% of the time which is 1.54% lower against Ashe than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ashe 2.80% less often than would be expected.
The average opponent winrate against Ashe is 55.54%.


Blitzcrank
Người Máy Hơi Nước
Cassiopeia wins against Blitzcrank 54.03% of the time which is 2.34% higher against Blitzcrank than the average opponent.
After normalising both champions win rates Cassiopeia wins against Blitzcrank 1.06% more often than would be expected.
The average opponent winrate against Blitzcrank is 51.69%.


Miss Fortune
Thợ Săn Tiền Thưởng
Cassiopeia wins against Miss Fortune 54.05% of the time which is 2.59% lower against Miss Fortune than the average opponent.
After normalising both champions win rates Cassiopeia wins against Miss Fortune 3.84% less often than would be expected.
The average opponent winrate against Miss Fortune is 56.64%.


Gragas
Gã Bợm Rượu
Cassiopeia wins against Gragas 54.07% of the time which is 2.42% higher against Gragas than the average opponent.
After normalising both champions win rates Cassiopeia wins against Gragas 1.14% more often than would be expected.
The average opponent winrate against Gragas is 51.65%.


Nautilus
Khổng Lồ Biển Sâu
Cassiopeia wins against Nautilus 54.28% of the time which is 2.76% higher against Nautilus than the average opponent.
After normalising both champions win rates Cassiopeia wins against Nautilus 1.48% more often than would be expected.
The average opponent winrate against Nautilus is 51.52%.


Neeko
Hóa Hình Sư Ham Học
Cassiopeia wins against Neeko 54.47% of the time which is 3.28% higher against Neeko than the average opponent.
After normalising both champions win rates Cassiopeia wins against Neeko 2.00% more often than would be expected.
The average opponent winrate against Neeko is 51.19%.


Ngộ Không
Hầu Vương
Cassiopeia wins against Ngộ Không 55.93% of the time which is 2.99% higher against Ngộ Không than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ngộ Không 1.72% more often than would be expected.
The average opponent winrate against Ngộ Không is 52.94%.


Zac
Vũ Khí Bí Mật
Cassiopeia wins against Zac 56.29% of the time which is 5.74% higher against Zac than the average opponent.
After normalising both champions win rates Cassiopeia wins against Zac 4.46% more often than would be expected.
The average opponent winrate against Zac is 50.55%.


Lissandra
Mụ Phù Thủy Băng
Cassiopeia wins against Lissandra 56.46% of the time which is 4.24% higher against Lissandra than the average opponent.
After normalising both champions win rates Cassiopeia wins against Lissandra 2.96% more often than would be expected.
The average opponent winrate against Lissandra is 52.22%.


Ornn
Ngọn Lửa Khởi Nguyên
Cassiopeia wins against Ornn 56.79% of the time which is 4.54% higher against Ornn than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ornn 3.26% more often than would be expected.
The average opponent winrate against Ornn is 52.25%.


Dr. Mundo
Cuồng Nhân Xứ Zaun
Cassiopeia wins against Dr. Mundo 57.28% of the time which is 3.69% higher against Dr. Mundo than the average opponent.
After normalising both champions win rates Cassiopeia wins against Dr. Mundo 2.42% more often than would be expected.
The average opponent winrate against Dr. Mundo is 53.59%.


Jhin
Nghệ Sĩ Tử Thần
Cassiopeia wins against Jhin 58.82% of the time which is 0.57% lower against Jhin than the average opponent.
After normalising both champions win rates Cassiopeia wins against Jhin 1.80% less often than would be expected.
The average opponent winrate against Jhin is 59.39%.


Anivia
Phượng Hoàng Băng
Cassiopeia wins against Anivia 59.12% of the time which is 6.85% higher against Anivia than the average opponent.
After normalising both champions win rates Cassiopeia wins against Anivia 5.57% more often than would be expected.
The average opponent winrate against Anivia is 52.27%.


Camille
Bóng Thép
Cassiopeia wins against Camille 60.55% of the time which is 7.39% higher against Camille than the average opponent.
After normalising both champions win rates Cassiopeia wins against Camille 6.12% more often than would be expected.
The average opponent winrate against Camille is 53.16%.


Twitch
Chuột Thành Tinh
Cassiopeia wins against Twitch 60.65% of the time which is 4.01% higher against Twitch than the average opponent.
After normalising both champions win rates Cassiopeia wins against Twitch 2.76% more often than would be expected.
The average opponent winrate against Twitch is 56.64%.


Ezreal
Nhà Thám Hiểm
Cassiopeia wins against Ezreal 64.80% of the time which is 2.94% higher against Ezreal than the average opponent.
After normalising both champions win rates Cassiopeia wins against Ezreal 1.74% more often than would be expected.
The average opponent winrate against Ezreal is 61.86%.


Caitlyn
Cảnh Sát Trưởng Piltover
Cassiopeia wins against Caitlyn 65.74% of the time which is 3.23% higher against Caitlyn than the average opponent.
After normalising both champions win rates Cassiopeia wins against Caitlyn 2.04% more often than would be expected.
The average opponent winrate against Caitlyn is 62.51%.


Nunu & Willump
Cậu Bé & Người Tuyết
Cassiopeia wins against Nunu & Willump 68.63% of the time which is 12.16% higher against Nunu & Willump than the average opponent.
After normalising both champions win rates Cassiopeia wins against Nunu & Willump 10.91% more often than would be expected.
The average opponent winrate against Nunu & Willump is 56.47%.