A+: Serena Williams
She has won Roland Garros the last 2 times she won Rome. A sign of things to come?
A: Ana Ivanovic
The only player to take a set off Serena. Did very well in ousting Sharapova. A dark horse in Paris.
A-: Sara Errani
A petite fighter who plays with all her heart, Pity her game will never get her the elusive big title.
B+: Jelena Jankovic
Her lack of net skills has been thoroughly exposed by Errani. However, a good week here as she beat Radwanska, who she hasn't beaten in a while.
B: Carla Suarez Navarro
Showed what's she capable of on clay against Ana, but faltered at the crucial point again.
B-: Agnieszka Radwanska
Continues her best clay season so far by reach at least the quarter-finals
C+: Li Na
How can Li beat Stosur (who she has never beaten before) and lose to Errani (who she has never lost before) back to back? Baffling performance from the world number 2.
C: Francesca Schiavone
Showed that she still has some tennis left in her by winning 2 matches here.
C-: Maria Sharapova
Awful performance considering she's riding on a 12 match winning streak. Nevertheless, she has nothing to be ashamed of for her clay court season so far.
D: Sloane Stephens
Not the first time she has disappointed, but she went down meekly without much resistance to Lepchenko. Expected more out of her.
E: Angelique Kerber
No wins in clay yet. Worrying for the German number 1.
F: Petra Kvitova
Yet another mystifying loss to Zhang Shuai. God help this woman.