100–136Win–Loss
42.4%Win %
0Titles
| Surface | W | L | % |
|---|---|---|---|
| Hard | 72 | 90 | 44.4% |
| Clay | 19 | 30 | 38.8% |
| Grass | 8 | 15 | 34.8% |
| Carpet | 1 | 1 | 50.0% |
Season by season
| Year | W | L | Titles | % |
|---|---|---|---|---|
| 2015 | 1 | 0 | 0 | 100.0% |
| 2014 | 3 | 4 | 0 | 42.9% |
| 2013 | 20 | 23 | 0 | 46.5% |
| 2012 | 13 | 20 | 0 | 39.4% |
| 2011 | 25 | 25 | 0 | 50.0% |
| 2010 | 12 | 20 | 0 | 37.5% |
| 2009 | 11 | 23 | 0 | 32.4% |
| 2008 | 6 | 12 | 0 | 33.3% |
| 2007 | 7 | 7 | 0 | 50.0% |
| 2006 | 2 | 1 | 0 | 66.7% |
| 2005 | 0 | 1 | 0 | 0.0% |
Ranking history
Matches
| Date | Tournament | Round | W/L | Opponent | Opp. rank | Score |
|---|---|---|---|---|---|---|
| 2012-12-31 | Shenzhen | R32 | W | Yung Jan Chan | 117 | 6-4 6-4 |
| 2012-10-08 | Osaka | R32 | L | Jamie Hampton | 80 | 6-3 6-2 |
| 2012-10-01 | Beijing | R32 | L | Marion Bartoli | 10 | 6-4 6-3 |
| 2012-10-01 | Beijing | R64 | W | Maria Teresa Torro Flor | 108 | 6-3 6-0 |
| 2012-09-24 | Tokyo | R32 | L | Angelique Kerber | 6 | 6-3 6-4 |
| 2012-09-24 | Tokyo | R64 | W | Sorana Cirstea | 31 | 6-2 3-6 6-2 |
| 2012-09-17 | Guangzhou | R32 | L | Shuai Peng | 47 | 7-6(3) 6-0 |
| 2012-08-27 | US Open | R64 | L | Tsvetana Pironkova | 55 | 7-5 6-2 |
| 2012-08-27 | US Open | R128 | W | Monica Niculescu | 33 | 6-3 6-3 |
| 2012-08-20 | Dallas | R32 | L | Shuai Peng | 36 | 4-6 6-0 6-3 |
| 2012-07-09 | Stanford | R32 | L | Saisai Zheng | 188 | 4-2 RET |
| 2012-06-25 | Wimbledon | R64 | L | Shuai Peng | 34 | 7-6(4) 6-3 |
| 2012-06-25 | Wimbledon | R128 | W | Jarmila Gajdosova | 76 | 6-4 6-3 |
| 2012-06-11 | Birmingham | R64 | L | Marina Erakovic | 46 | 5-0 RET |
| 2012-05-28 | Roland Garros | R64 | L | Maria Sharapova | 2 | 6-1 6-1 |
| 2012-05-28 | Roland Garros | R128 | W | Polona Hercog | 39 | 3-6 6-4 6-3 |
| 2012-05-21 | Strasbourg | QF | L | Sloane Stephens | 79 | 6-3 6-4 |
| 2012-05-21 | Strasbourg | R16 | W | Virginie Razzano | 115 | 6-1 6-3 |
| 2012-05-21 | Strasbourg | R32 | W | Marina Erakovic | 40 | 6-1 6-3 |
| 2012-04-30 | Estoril | R32 | L | Maria Joao Koehler | 227 | 6-1 7-5 |
| 2012-04-21 | Fed Cup WG PO: JPN vs BEL | RR | W | Tamaryn Hendler | 203 | 7-5 6-2 |
| 2012-04-21 | Fed Cup WG PO: JPN vs BEL | RR | W | Alison Van Uytvanck | 274 | 6-4 6-4 |
| 2012-03-19 | Miami | R128 | L | Garbine Muguruza | 208 | 6-3 2-6 3-0 RET |
| 2012-03-05 | Indian Wells | R128 | L | Barbora Strycova | 59 | 2-6 6-1 6-4 |
| 2012-02-27 | Kuala Lumpur | QF | L | Jelena Jankovic | 14 | W/O |
| 2012-02-27 | Kuala Lumpur | R16 | W | Misaki Doi | 125 | 7-6(6) 6-2 |
| 2012-02-27 | Kuala Lumpur | R32 | W | Nudnida Luangnam | 307 | 6-4 6-0 |
| 2012-02-13 | Doha | R64 | L | Yanina Wickmayer | 27 | 6-2 6-1 |
| 2012-02-06 | Pattaya | R32 | L | Sania Mirza | 111 | 3-6 6-1 6-2 |
| 2012-02-04 | Fed Cup WG2 R1: JPN vs SLO | RR | W | Polona Hercog | 36 | 3-6 7-6(6) 6-1 |
| 2012-02-04 | Fed Cup WG2 R1: JPN vs SLO | RR | W | Nastja Kolar | 245 | 2-6 6-4 6-3 |
| 2012-01-16 | Australian Open | R128 | L | Petra Cetkovska | 33 | 3-6 6-1 7-5 |
| 2012-01-09 | Hobart | R32 | L | Jarmila Gajdosova | 34 | 6-3 6-4 |
| 2012-01-02 | Auckland | R32 | L | Jie Zheng | 48 | 4-6 6-3 6-4 |
| 2011-10-10 | Osaka | QF | L | Marion Bartoli | 11 | 6-2 6-1 |
| 2011-10-10 | Osaka | R16 | W | Eleni Daniilidou | 87 | 6-2 6-3 |
| 2011-10-10 | Osaka | R32 | W | Shuai Zhang | 126 | 7-6(3) 6-2 |
| 2011-10-03 | Beijing | R64 | L | Christina Mchale | 49 | 6-2 0-6 6-3 |
| 2011-09-26 | Tokyo | R32 | L | Marion Bartoli | 10 | 6-3 0-6 6-3 |
| 2011-09-26 | Tokyo | R64 | W | Irina Falconi | 79 | 7-5 6-1 |
| 2011-09-19 | Seoul | R32 | L | Klara Koukalova | 43 | 6-3 6-4 |
| 2011-08-29 | US Open | R128 | L | Laura Robson | 173 | 7-6(5) 1-0 RET |
| 2011-08-22 | New Haven | R32 | L | Petra Cetkovska | 40 | 6-2 6-2 |
| 2011-08-15 | Cincinnati | R64 | L | Alona Bondarenko | 139 | 6-2 4-6 6-2 |
| 2011-08-08 | Toronto | R64 | L | Samantha Stosur | 11 | 4-6 6-2 6-3 |
| 2011-08-01 | San Diego | R32 | L | Ana Ivanovic | 18 | 6-1 7-6(5) |
| 2011-08-01 | San Diego | R64 | W | Jelena Dokic | 62 | 6-1 4-6 7-5 |
| 2011-07-25 | Stanford | QF | L | Marion Bartoli | 9 | 6-1 0-0 RET |
| 2011-07-25 | Stanford | R16 | W | Urszula Radwanska | 131 | 4-6 7-5 6-1 |
| 2011-07-25 | Stanford | R32 | W | Ana Ivanovic | 17 | 6-3 7-5 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0