Result grid
Group A
Caroline Wozniacki
Agnieszka Radwanska
Maria Sharapova
Petra Kvitova
Points
Caroline WozniackiWozniacki
3
Agnieszka RadwanskaRadwanska
1
Maria SharapovaMaria Sharapova
1
Petra KvitovaKvitova
1
Group B
Simona Halep
Serena Williams
Ana Ivanovic
Eugenie Bouchard
Points
Simona HalepHalep
2
Serena WilliamsS Williams
2
Ana IvanovicAna Ivanovic
2
Eugenie BouchardBouchard
0