2004 - Played first events of career on ITF Circuit.
2005 - Played WTA qualifying four times.
2006 - Played first WTA main draw at Berlin, falling 1r (as WC); fell in qualifying four times.
2007 - Fell 1r once and in qualifying twice; won two singles titles on ITF Circuit.
2008 - First Top 100 season; runner-up at Tashkent (l. to Cirstea 26 64 76(4); held mp at 5-4 third set); QF at Cincinnati; reached 4r once, 3r once (
Australian Open) and 2r five times (incl.
Roland Garros,
US Open); fell 1r nine times (incl.
Wimbledon) and in qualifying three times; made Top 100 debut on May 12 (after Berlin; rose from No.102 to No.89) and Top 50 debut on October 6 (after Tashkent; rose from No.64 to No.50).
2009 - First Top 30 season; won first WTA title at Charleston (d. Wozniacki in final); runner-up at Luxembourg (l. to Bacsinszky in final); SF at Memphis (l. to Azarenka); QF twice, at Estoril and
Wimbledon (first Grand Slam QF; l. to Safina); reached 3r once and 2r seven times (incl.
Australian Open,
US Open - l. to Rodionova 63 36 75; held 2mp at 5-3 third set); fell 1r four times (incl.
Roland Garros) and in RR stage at Bali (went 1-1 in RR); having begun season outside Top 50, surged past previous career-high No.49 on April 20 (after Charleston; rose from No.63 to No.43) and peaked at No.22 on August 3 (would be career-high for two years).
2010 - Season marred by injury; reached 2r three times in first four events (incl.
Australian Open), then ret. in Indian Wells opener w/left ankle injury and ret. from Miami opener w/same injury; missed five months w/left ankle injury (incl.
Roland Garros,
Wimbledon); returned to WTA at Cincinnati in August (best result rest of season was reaching 2r at
US Open).
2011 - Breakthrough first Top 15 season (finishing No.15); won two WTA titles at Birmingham (d. Hantuchova in final) and Dallas (d. Rezai in final); SF three times, most notably
Wimbledon (first Grand Slam SF; l. to Sharapova) but also Stanford (l. to S.Williams) and Bali (ret. vs. Medina Garrigues w/mid-back injury); QF twice, at Stuttgart and Carlsbad; reached 4r once (
US Open), 3r twice and 2r three times (incl.
Roland Garros - l. to Zvonareva 46 75 75; held mp at 5-2 third set); fell 1r twice and in qualifying twice (incl.
Australian Open); having ranked as low as No.218 during Indian Wells (March 7 fortnight), cracked Top 20 on August 29 (after Dallas; rose from No.23 to No.18) and set new career-high No.15 on November 7 year-end rankings (after Bali; rose from No.18 to No.15); withdrew from Beijing 2r and from Luxembourg w/GI illness.
