2005 - Played first events of career on ITF Circuit.
2006 - Played first WTA qualifying at Stuttgart (as WC); won two singles and one doubles title on ITF Circuit.
2007 - Played first five WTA main draws, reaching SF at Stockholm (l. to Dushevina) and 2r once but falling 1r three times (incl.
US Open); fell in qualifying four times; won two singles titles and two doubles titles on ITF Circuit.
2008 - SF at Portoroz (l. to Medina Garrigues); QF at Memphis; reached 2r once (
Wimbledon); fell 1r four times (incl.
US Open) and in qualifying six times (incl. other two majors); made Top 100 debut on June 9 (after
Roland Garros; rose from No.119 to No.98).
2009 - First Top 100 season; SF at Québec City (l. to Safarova); reached 3r once and 2r four times; fell 1r five times (incl. all four majors) and in qualifying four times; won one WTA doubles title; won one singles title and one doubles title on ITF Circuit.
2010 - First Top 50 season; won first WTA title at Bad Gastein (d. Bacsinszky in final); made Top 50 debut afterwards on July 26 (rose from No.65 to No.42); runner-up at Luxembourg (l. to Vinci in final); SF at Palermo (l. to Pennetta); QF three times, at Strasbourg, Copenhagen and Linz; reached 3r once and 2r nine times (incl.
Australian Open,
Roland Garros,
US Open); fell 1r seven times (incl.
Wimbledon and Beijing - l. to Bacsinszky 36 64 76(4); held 4mp at 5-3 third set) and in qualifying once; won two WTA doubles titles; won one singles title and two doubles titles on ITF Circuit.
2011 - Breakthrough season highlighted by stellar results on clay and cracking Top 20; won 15 of 18 matches during spring clay court season, reaching QF at Charleston (l. to Vesnina), winning second WTA title at Stuttgart (d. Wozniacki in final), reaching SF at Madrid (l. to Azarenka) then, after withdrawing from Rome and Brussels w/low back injury, reaching 3r at
Roland Garros (l. to Bartoli); SF twice more at Auckland (l. to Arn) and Luxembourg (l. to Azarenka) and QF once more at Seoul (l. to Martínez Sánchez); reached 3r six times (incl. all four majors) and 2r six times; fell 1r seven times; made Top 20 debut on May 9 (after Madrid; rose from No.27 to No.20) and spent 18 weeks of season in Top 20, including seven weeks at career-high No.16 (finished No.21).