2005 - Won one singles title and one doubles title on ITF Circuit, then played first WTA main draw at Linz, reaching 2r (as WC, d. Vesnina in 1r - youngest player to win a match all season).
2006 - Won first WTA title at Portoroz (d. Camerin in final); at 15y/9m/18d, seventh-youngest singles titlist in WTA history; at No.259, also third-lowest ranked singles titlist in WTA history at the time; also reached 2r once and fell 1r once; fell in qualifying twice.
2007 - First Top 50 season; reached 4r twice (
Wimbledon,
US Open), 3r once and 2r seven times (incl. other two majors); fell 1r four times; made Top 100 debut on March 19 (rose from No.101 to No.100) and Top 50 debut on July 9 (after
Wimbledon; rose from No.54 to No.35); youngest player in Top 280 of year-end rankings (next was No.281 Pavlyuchenkova).
2008 - Another Top 100 season; runner-up at Bali (l. to Schnyder in final); SF at Auckland (l. to Davenport); QF twice, Montréal and Guangzhou; reached 3r once and 2r four times (incl.
US Open); fell 1r nine times (incl. other three majors - l. to Jankovic in
Australian Open 1r 26 62 1210 after holding 3mp - 1mp at 5-4 and 2mp at 6-5).
2009 - QF at Ponte Vedra Beach (l. to Wozniak 63 36 76(7); held mp at 6-5 third set); reached 2r three times; fell 1r five times (incl.
Australian Open,
Roland Garros,
Wimbledon) and in qualifying three times; second half of season marred by low back injury (withdrew from 's-Hertogenbosch, ret. in
Wimbledon 1r and withdrew from all post-Wimbledon events).
2010 - Another Top 100 season; won second WTA title at Québec City (d. Mattek-Sands in final); reached 2r five times (incl.
US Open); fell 1r five times (incl.
Australian Open) and in qualifying 11 times (incl.
Wimbledon); won one singles title and one doubles title on ITF Circuit.
2011 - Second Top 50 season; SF twice, at College Park (l. to Peer) and Québec City (l. to Erakovic); QF at
Wimbledon (l. to Sharapova; first Grand Slam QF); reached 3r three times and 2r three times; fell 1r 12 times (incl.
US Open) and in qualifying twice; retired in Estoril 1r w/hip injury, then had abdominal injury in summer (retired in Carlsbad 3r, withdrew from Cincinnati).