Peng Shuai Reaches Semi's of Charleston

Peng Shuai (CHN) (#30) is having a good year this year.  This time around, she reaches the semifinals of Charleston, which is surprising for her since it's a clay court tournament.  It's still early this year yet she has already reached the semifinals in Auckland, Hobart and here in Charleston;  the fourth round of the Australian Open and Miami; and the quarters of Pattaya, Indian Wells and Doha.  This was her path to the semi's -

SF - lost to Elena Vesnina (RUS) (#56) 67(4) 36
QF - Sania Mirza (IND) (#90) 26 62 62
3R - Nadia Petrova (RUS) (#22) 63 57 62
2R - Ayumi Morita (JPN) (#53) 62 61
1R - Sloane Stephens (USA) (#180) 62 61