Cassandra Breen ha enfrentado a 53 oponentes a lo largo de su carrera.

Player Team(s) Games
Pauline Astier
Bourges (EU-2 (W))
1
Sarah Berankova
Zabiny Brno (EU-2 (W))
1
Valeriya Berezhynska 2
Carla Brito 2
Maya Caldwell 2
Brittany Carter 1
Elma Dautovic 2
Milica Deura 1
Maria Doreste 1
Quinn Dornstauder 2
Alix Duchet
Bourges (EU-2 (W))
1
Elin Eldebrink
Bourges (EU-2 (W))
1
Katerina Galickova
Zabiny Brno (EU-2 (W))
2
Lydia Giomi 2
Elodie Godin
Bourges (EU-2 (W))
1
Monika Grigalauskyte
Zabiny Brno (EU-2 (W))
2
Laetitia Guapo
Bourges (EU-2 (W))
1
Danielle Hamilton-Carter 2
Keisha Hampton
Bourges (EU-2 (W))
1
Eliska Hamzova
Zabiny Brno (EU-2 (W))
2
Alina Hartmann 2
Lynn Hering 2
Lashann Higgs 2
Bria Holmes
Zabiny Brno (EU-2 (W))
2
Anna Jurcenkova
Zabiny Brno (EU-2 (W))
2
Tesse Kapenga 1
Alex Kiss-Rusk 2
Aislinn Konig 2
Anezka Kopecka
Zabiny Brno (EU-2 (W))
1
Jessica Lindstrom 2
Maxuella Lisowa Mbaka 2
Sanja Mandic 1
Kristen Mann
Bourges (EU-2 (W))
1
Stella Mavuanga
Bourges (EU-2 (W))
1
Hanne Mestdagh 2
Sarah Michel-Boury
Bourges (EU-2 (W))
1
Blanca Millan 2
Maria Mongomo 2
Josipa Pavic 2
Zenaida Perez 1
Mailis Pokk 2
Elise Ramette 2
Breanna Richardson 1
Iliana Rupert
Bourges (EU-2 (W))
1
Linn Schuler 2
Agnieszka Skobel 2
Natalie Stoupalova
Zabiny Brno (EU-2 (W))
2
Matea Tavic 2
Sam Van Buggenhout 2
Michaela Vondrackova
Zabiny Brno (EU-2 (W))
2
Isabelle Yacoubou
Bourges (EU-2 (W))
1
Petra Zaplatova
Zabiny Brno (EU-2 (W))
2
Jess-Mine Zodia
Bourges (EU-2 (W))
1