A+: Maria Sharapova
Climbs to number 2 with this win, steps up when the higher ranked players fall.
A: Maria Kirilenko
Upsets Dubai champion, Kvitova and outwits Agnieszka Radwanska for a semi-final appearance.
A-: Caroline Wozniacki
Did well to hold off Kerber, but extremely lucky to not face Azarenka
B+: Angelique Kerber
Signalled her return with a semi-final appearance, but lost the momentum against Wozniacki
B: Sara Errani
Proves doubters wrong again but living up to her seeding and putting up a good fight against eventual champion.
B-: Victoria Azarenka
Seemed to be genuinely injured this time. Still managed to defeat Urszula Radwanska on one leg.
C+: Mona Barthel
Insane form against Ana Ivanovic. However, couldn't continue that form against Stosur.
C: Urszula Radwanska
Silenced the hyped up players in Sloane Stephens and Jamie Hampton. Folded like a cheap tent against Azarenka though.
C-: Agnieszka Radwanska
Paying the price for over-playing this year. Falls to a less talented version of herself.
D: Ana Ivanovic
Nervous wreck when facing someone playing well. Looks lost on court with zero plan B.
E: Jelena Jankovic
Won the first set with a bagel but eventually lost the entire match. Just couldn't catch a break even after winning a small title.
F: Yaroslava Shvedova
Winless since Hobart in 2013. Enough said.