80–115Win–Loss
41.0%Win %
0Titles
| Surface | W | L | % |
|---|---|---|---|
| Hard | 50 | 79 | 38.8% |
| Clay | 23 | 25 | 47.9% |
| Carpet | 3 | 6 | 33.3% |
| Grass | 4 | 5 | 44.4% |
Season by season
| Year | W | L | Titles | % |
|---|---|---|---|---|
| 2016 | 0 | 2 | 0 | 0.0% |
| 2015 | 0 | 2 | 0 | 0.0% |
| 2014 | 0 | 1 | 0 | 0.0% |
| 2013 | 1 | 3 | 0 | 25.0% |
| 2012 | 0 | 3 | 0 | 0.0% |
| 2011 | 3 | 9 | 0 | 25.0% |
| 2010 | 7 | 10 | 0 | 41.2% |
| 2009 | 8 | 19 | 0 | 29.6% |
| 2008 | 24 | 30 | 0 | 44.4% |
| 2007 | 22 | 20 | 0 | 52.4% |
| 2006 | 9 | 11 | 0 | 45.0% |
| 2005 | 4 | 3 | 0 | 57.1% |
| 2004 | 2 | 1 | 0 | 66.7% |
| 2003 | 0 | 1 | 0 | 0.0% |
Ranking history
Matches
| Date | Tournament | Round | W/L | Opponent | Opp. rank | Score |
|---|---|---|---|---|---|---|
| 2016-05-02 | Busan CH | Q1 | L | Yong Kyu Lim | 890 | 3-6 6-4 6-1 |
| 2016-04-11 | Gwangju CH | Q1 | L | Chan Yeong Oh | 1868 | 6-2 4-6 6-0 |
| 2015-10-11 | Shanghai Masters | Q1 | L | Pierre Hugues Herbert | 111 | 6-3 6-2 |
| 2015-09-28 | Kuala Lumpur | Q1 | L | Mischa Zverev | 248 | 6-4 6-2 |
| 2014-09-29 | Tokyo | Q1 | L | Thanasi Kokkinakis | 172 | 6-0 6-2 |
| 2013-10-07 | Shanghai Masters | Q1 | L | Alejandro Falla | 110 | 7-5 3-6 6-2 |
| 2013-09-23 | Bangkok | Q2 | L | Santiago Giraldo | 89 | 6-4 6-2 |
| 2013-09-23 | Bangkok | Q1 | W | Nutthanon Kadchapanan | 1218 | 7-6(4) 3-6 6-3 |
| 2013-07-08 | Beijing CH | R32 | L | Ze Zhang | 175 | 6-3 6-1 |
| 2012-09-24 | Kuala Lumpur | Q2 | L | Treat Conrad Huey | 1099 | 6-3 7-6(3) |
| 2012-07-16 | An-Ning CH | R32 | L | Laurent Rochette | 228 | 6-2 6-4 |
| 2012-02-06 | Caloundra CH | R32 | L | Erik Chvojka | 274 | 6-3 6-2 |
| 2011-11-21 | Toyota CH | R16 | L | Takao Suzuki | 686 | 7-6(3) 6-4 |
| 2011-11-21 | Toyota CH | R32 | W | Soong Jae Cho | 636 | 6-3 6-4 |
| 2011-08-01 | Beijing CH | R16 | L | Guillermo Olaso | 170 | 7-6(5) 6-1 |
| 2011-08-01 | Beijing CH | R32 | W | Junn Mitsuhashi | 404 | 6-4 6-4 |
| 2011-07-25 | Wuhai CH | R32 | L | Young Jun Kim | 457 | 6-2 6-3 |
| 2011-05-16 | Fergana CH | R16 | L | Dudi Sela | 108 | 6-7(4) 6-3 6-1 |
| 2011-05-16 | Fergana CH | R32 | W | Dilshod Saidmukhamedov | – | 6-3 6-0 |
| 2011-04-25 | Leon CH | R32 | L | Andre Begemann | 319 | 6-4 6-4 |
| 2011-04-04 | Houston | Q1 | L | Peter Polansky | 206 | 6-3 6-4 |
| 2011-03-21 | Pingguo CH | R32 | L | Zhe Li | 424 | 7-6(3) 7-5 |
| 2011-03-07 | Kyoto CH | R32 | L | Andre Begemann | 304 | 6-3 6-7(5) 7-6(4) |
| 2011-01-24 | Honolulu CH | R32 | L | Michael Russell | 100 | 4-6 6-1 6-4 |
| 2010-11-22 | Toyota CH | R32 | L | Jimmy Wang | 1003 | 5-7 6-3 6-1 |
| 2010-09-27 | Kuala Lumpur | Q3 | L | Igor Andreev | 102 | 6-2 6-2 |
| 2010-09-27 | Kuala Lumpur | Q2 | W | Mohamed Nazim Khan | – | 6-3 6-1 |
| 2010-09-13 | Bangkok CH | R32 | L | Grigor Dimitrov | 190 | 2-6 6-0 6-1 |
| 2010-08-23 | Astana CH | R32 | L | Ze Zhang | 315 | 7-5 6-2 |
| 2010-08-16 | Karshi CH | R32 | L | Jan Minar | 318 | 6-1 6-4 |
| 2010-08-09 | Samarkand CH | R32 | L | Mikhail Elgin | 496 | 6-2 5-7 7-5 |
| 2010-08-02 | Beijing CH | SF | L | Laurent Recouderc | 218 | 6-3 6-4 |
| 2010-08-02 | Beijing CH | QF | W | Andrey Kumantsov | 319 | 7-6(5) 6-1 |
| 2010-08-02 | Beijing CH | R16 | W | Harri Heliovaara | 360 | 6-3 6-4 |
| 2010-08-02 | Beijing CH | R32 | W | Yu Chang | 610 | 6-4 6-4 |
| 2010-05-24 | Carson CH | R32 | L | Robert Kendrick | 156 | 6-4 6-3 |
| 2010-05-17 | Fergana CH | R32 | L | Young Jun Kim | 359 | 7-6(8) 6-3 |
| 2010-05-10 | Busan CH | SF | L | Yong Kyu Lim | 760 | 6-3 6-4 |
| 2010-05-10 | Busan CH | QF | W | Rameez Junaid | 378 | 3-6 6-2 7-6(6) |
| 2010-05-10 | Busan CH | R16 | W | Alexander Peya | 240 | 4-6 6-1 6-1 |
| 2010-05-10 | Busan CH | R32 | W | Yuichi Ito | 337 | 2-6 6-4 6-3 |
| 2009-11-23 | Toyota CH | R32 | L | Martin Fischer | 218 | 6-3 6-4 |
| 2009-11-02 | Chuncheon CH | R16 | L | Frederik Nielsen | 262 | 6-2 6-2 |
| 2009-11-02 | Chuncheon CH | R32 | W | Thiemo De Bakker | 99 | 7-6(3) 2-6 7-6(3) |
| 2009-10-11 | Shanghai Masters | Q1 | L | Michael Yani | 194 | 6-4 6-3 |
| 2009-09-28 | Kuala Lumpur | Q2 | L | Brendan Evans | 129 | 4-6 6-4 6-3 |
| 2009-09-28 | Kuala Lumpur | Q1 | W | Mohamed Nazim Khan | – | 7-5 6-2 |
| 2009-08-10 | Samarkand CH | R16 | L | Dustin Brown | 380 | 6-4 7-5 |
| 2009-08-10 | Samarkand CH | R32 | W | Deniss Pavlovs | 297 | 6-3 6-4 |
| 2009-07-13 | Stuttgart | Q2 | L | Dominik Meffert | 205 | 6-2 6-3 |