71–84Menang–Kalah
45.8%% Menang
0Gelar
| Lapangan | W | L | % |
|---|---|---|---|
| Hard | 65 | 68 | 48.9% |
| Clay | 2 | 8 | 20.0% |
| Carpet | 4 | 5 | 44.4% |
| Grass | 0 | 3 | 0.0% |
Musim per musim
| Tahun | W | L | Gelar | % |
|---|---|---|---|---|
| 2011 | 2 | 3 | 0 | 40.0% |
| 2010 | 8 | 12 | 0 | 40.0% |
| 2009 | 31 | 27 | 0 | 53.4% |
| 2008 | 8 | 10 | 0 | 44.4% |
| 2007 | 12 | 13 | 0 | 48.0% |
| 2006 | 2 | 4 | 0 | 33.3% |
| 2005 | 4 | 8 | 0 | 33.3% |
| 2004 | 1 | 2 | 0 | 33.3% |
| 2003 | 3 | 4 | 0 | 42.9% |
| 2002 | 0 | 1 | 0 | 0.0% |
Pertandingan
| Tanggal | Turnamen | Babak | W/L | Lawan | Rank lawan | Skor |
|---|---|---|---|---|---|---|
| 2009-07-10 | Davis Cup G1 PO: KOR vs CHN | RR | W | Shao Xuan Zeng | 542 | 6-0 6-2 6-3 |
| 2009-07-10 | Davis Cup G1 PO: KOR vs CHN | RR | W | Mao Xin Gong | 536 | 6-3 6-0 6-2 |
| 2009-06-22 | Wimbledon | Q1 | L | Karol Beck | 143 | 6-3 6-2 |
| 2009-05-25 | Roland Garros | Q1 | L | Fabio Fognini | 62 | 6-4 6-1 |
| 2009-05-25 | Alessandria CH | R32 | L | Ruben Ramirez Hidalgo | 128 | 6-4 6-2 |
| 2009-05-11 | Busan CH | SF | L | Blaz Kavcic | 243 | 6-2 7-5 |
| 2009-05-11 | Busan CH | QF | W | Aisam Ul Haq Qureshi | 281 | 6-4 4-6 6-3 |
| 2009-05-11 | Busan CH | R16 | W | Jae Sung An | 549 | 6-2 7-5 |
| 2009-05-11 | Busan CH | R32 | W | Ti Chen | 375 | 6-2 6-7(9) 6-1 |
| 2009-04-20 | Tallahassee CH | QF | L | Donald Young | 167 | 6-4 4-3 RET |
| 2009-04-20 | Tallahassee CH | R16 | W | Kevin Kim | 104 | 7-6(8) 6-2 |
| 2009-04-20 | Tallahassee CH | R32 | W | Alex Bogdanovic | 182 | 6-4 6-4 |
| 2009-04-13 | Mexico City CH | SF | L | Dick Norman | 301 | 6-4 6-1 |
| 2009-04-13 | Mexico City CH | QF | W | Dawid Olejniczak | 260 | 6-4 3-1 RET |
| 2009-04-13 | Mexico City CH | R16 | W | Vincent Millot | 390 | 6-1 6-7(5) 6-3 |
| 2009-04-13 | Mexico City CH | R32 | W | Frank Dancevic | 112 | 7-6(9) 6-7(3) 6-0 |
| 2009-04-06 | Baton Rouge CH | R32 | L | Somdev Devvarman | 150 | 6-7(4) 6-2 6-2 |
| 2009-03-23 | Khorat CH | R16 | L | Marsel Ilhan | 215 | 6-3 7-6(4) |
| 2009-03-23 | Khorat CH | R32 | W | Peerakiat Siriluethaiwattana | 913 | 6-1 6-1 |
| 2009-03-16 | Bangkok CH | SF | L | Florian Mayer | 305 | 7-6(4) 7-6(2) |
| 2009-03-16 | Bangkok CH | QF | W | Go Soeda | 117 | 6-4 6-4 |
| 2009-03-16 | Bangkok CH | R16 | W | Martin Slanar | 275 | 6-3 RET |
| 2009-03-16 | Bangkok CH | R32 | W | Takao Suzuki | 491 | 6-4 4-6 6-0 |
| 2009-03-09 | Kyoto CH | R32 | L | Izak Van Der Merwe | 282 | 6-7(1) 7-5 6-4 |
| 2009-03-06 | Davis Cup G1 R2: UZB vs KOR | RR | L | Denis Istomin | 104 | 6-3 6-2 6-4 |
| 2009-02-02 | Burnie CH | QF | L | Brydan Klein | 221 | 6-3 6-4 |
| 2009-02-02 | Burnie CH | R16 | W | Blaz Kavcic | 275 | 6-3 7-6(5) |
| 2009-02-02 | Burnie CH | R32 | W | Tatsuma Ito | 310 | 6-3 6-4 |
| 2009-01-19 | Australian Open | Q2 | L | Andreas Beck | 103 | 3-6 7-6(3) 6-3 |
| 2009-01-19 | Australian Open | Q1 | W | Martin Fischer | 213 | 4-6 6-3 6-4 |
| 2009-01-05 | Chennai | Q3 | L | Danai Udomchoke | 152 | 7-6(5) 6-1 |
| 2009-01-05 | Chennai | Q2 | W | N Sriram Balaji | 1784 | 6-0 6-7(4) 6-2 |
| 2009-01-05 | Chennai | Q1 | W | Naveen Sai | – | 6-0 6-0 |
| 2008-11-24 | Toyota CH | QF | L | Takao Suzuki | 680 | 6-4 6-4 |
| 2008-11-24 | Toyota CH | R16 | W | Woong Sun Jun | 268 | 7-6(6) 3-6 7-6(5) |
| 2008-11-24 | Toyota CH | R32 | W | Nick Lindahl | 302 | 6-2 7-5 |
| 2008-10-27 | Busan CH | R16 | L | Alex Bogomolov Jr | 202 | 6-4 6-1 |
| 2008-10-27 | Busan CH | R32 | W | Denis Istomin | 107 | 6-2 6-3 |
| 2008-10-20 | Seoul CH | R16 | L | Bjorn Phau | 116 | 7-6(4) 6-2 |
| 2008-10-20 | Seoul CH | R32 | W | Lukasz Kubot | 218 | 4-6 6-3 7-6(4) |
| 2008-09-29 | Tokyo | Q1 | L | Gouichi Motomura | 322 | 6-0 6-3 |
| 2008-09-19 | Davis Cup WG PO: NED vs KOR | RR | L | Jesse Huta Galung | 181 | 6-3 6-3 5-7 6-2 |
| 2008-07-28 | Vancouver CH | R16 | L | Go Soeda | 124 | 6-3 3-6 6-2 |
| 2008-07-28 | Vancouver CH | R32 | W | Scoville Jenkins | 195 | 7-5 6-7(3) 6-3 |
| 2008-07-14 | Moncton CH | QF | L | Xavier Malisse | 189 | 4-6 6-1 6-1 |
| 2008-07-14 | Moncton CH | R16 | W | Vincent Millot | 465 | 6-3 4-6 6-4 |
| 2008-07-14 | Moncton CH | R32 | W | George Bastl | 282 | 6-3 6-3 |
| 2008-07-07 | Granby CH | R32 | L | Danai Udomchoke | 207 | 7-5 4-6 6-3 |
| 2008-04-14 | Busan CH | R32 | L | Shao Xuan Zeng | 642 | 5-7 6-0 6-4 |
| 2008-03-03 | Kyoto CH | R16 | L | Yen Hsun Lu | 124 | 6-4 6-4 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0