9–16Win–Loss
36.0%Win %
0Titles
| Surface | W | L | % |
|---|---|---|---|
| Hard | 9 | 15 | 37.5% |
| Clay | 0 | 1 | 0.0% |
Season by season
| Year | W | L | Titles | % |
|---|---|---|---|---|
| 2016 | 2 | 1 | 0 | 66.7% |
| 2012 | 0 | 1 | 0 | 0.0% |
| 2009 | 0 | 1 | 0 | 0.0% |
| 2008 | 2 | 4 | 0 | 33.3% |
| 2007 | 4 | 6 | 0 | 40.0% |
| 2006 | 0 | 1 | 0 | 0.0% |
| 2005 | 0 | 1 | 0 | 0.0% |
| 2004 | 1 | 0 | 0 | 100.0% |
| 2003 | 0 | 1 | 0 | 0.0% |
Ranking history
Matches
| Date | Tournament | Round | W/L | Opponent | Opp. rank | Score |
|---|---|---|---|---|---|---|
| 2016-07-18 | Gimcheon CH | R32 | L | Takuto Niki | 572 | 6-4 6-0 |
| 2016-07-18 | Gimcheon CH | Q2 | W | Sidharth Rawat | 577 | W/O |
| 2016-07-18 | Gimcheon CH | Q1 | W | Donggeun Oh | – | 6-0 6-0 |
| 2012-10-22 | Seoul CH | R32 | L | Yong Kyu Lim | 518 | 4-6 7-6(4) 6-3 |
| 2009-02-23 | Melbourne CH | R32 | L | Marinko Matosevic | 286 | 6-4 6-1 |
| 2008-09-29 | Tokyo | Q1 | L | Ti Chen | 278 | 7-6(2) 6-4 |
| 2008-09-22 | Beijing | Q2 | W | Ya Nan Ma | – | 6-3 6-1 |
| 2008-09-22 | Beijing | Q1 | W | Ye Dunbar | 1361 | W/O |
| 2008-09-22 | Beijing | R32 | L | Bjorn Phau | 137 | 6-1 6-3 |
| 2008-08-11 | Bukhara CH | R32 | L | Blaz Kavcic | 310 | 6-4 6-1 |
| 2008-08-04 | Samarkand CH | R32 | L | Vjekoslav Skenderovic | 324 | 6-3 6-0 |
| 2007-12-03 | New Delhi2 CH | R32 | L | Josh Goodall | 310 | 6-2 6-4 |
| 2007-11-19 | Yokohama CH | R32 | L | Satoshi Iwabuchi | 383 | 6-4 6-4 |
| 2007-11-12 | Kaohsiung CH | R32 | L | Nathan Thompson | 640 | 6-2 6-2 |
| 2007-10-01 | Tokyo | Q2 | W | Davide Sanguinetti | 256 | 6-3 5-7 7-6(5) |
| 2007-10-01 | Tokyo | Q1 | W | Tatsuma Ito | 589 | 6-4 7-6(4) |
| 2007-10-01 | Tokyo | R64 | L | Robert Kendrick | 112 | 7-6(5) 6-7(7) 6-3 |
| 2007-09-10 | Beijing | Q3 | L | Shao Xuan Zeng | 794 | 6-1 6-3 |
| 2007-09-10 | Beijing | Q2 | W | Chris Haggard | 1303 | 6-4 7-6(5) |
| 2007-09-10 | Beijing | Q1 | W | Gregory Howe | 1381 | 6-3 6-2 |
| 2007-05-28 | Busan CH | R32 | L | Robert Smeets | 247 | 6-3 7-6(4) |
| 2006-05-29 | Busan CH | R32 | L | John Paul Fruttero | 217 | 6-3 7-5 |
| 2005-05-23 | Busan CH | R32 | L | Cecil Mamiit | 236 | 6-0 6-3 |
| 2004-02-06 | Davis Cup G2 R1: MAS vs KOR | RR | W | Mohammed Noor Noordin | – | 6-3 6-1 |
| 2003-09-15 | Seoul CH | R32 | L | Alex Bogomolov Jr | 116 | 6-4 6-4 |