47–47Menang–Kalah
50.0%% Menang
0Gelar
| Lapangan | W | L | % |
|---|---|---|---|
| Hard | 45 | 39 | 53.6% |
| Clay | 0 | 5 | 0.0% |
| Carpet | 1 | 2 | 33.3% |
| Grass | 1 | 1 | 50.0% |
Musim per musim
| Tahun | W | L | Gelar | % |
|---|---|---|---|---|
| 2018 | 2 | 3 | 0 | 40.0% |
| 2016 | 9 | 5 | 0 | 64.3% |
| 2015 | 1 | 1 | 0 | 50.0% |
| 2014 | 2 | 3 | 0 | 40.0% |
| 2013 | 7 | 9 | 0 | 43.8% |
| 2012 | 6 | 8 | 0 | 42.9% |
| 2011 | 11 | 6 | 0 | 64.7% |
| 2010 | 8 | 6 | 1 | 57.1% |
| 2009 | 0 | 5 | 0 | 0.0% |
| 2008 | 1 | 1 | 0 | 50.0% |
Riwayat peringkat
Pertandingan
| Tanggal | Turnamen | Babak | W/L | Lawan | Rank lawan | Skor |
|---|---|---|---|---|---|---|
| 2018-05-14 | Busan CH | Q1 | L | Wishaya Trongcharoenchaikul | 426 | 6-7(5) 7-6(3) 6-2 |
| 2018-05-07 | Gimcheon CH | Q2 | L | Wishaya Trongcharoenchaikul | 434 | 2-6 7-6(8) 6-4 |
| 2018-05-07 | Gimcheon CH | Q1 | W | Cheng Peng Hsieh | 1694 | 6-4 6-3 |
| 2018-04-30 | Seoul CH | Q2 | L | Renta Tokuda | 357 | 6-4 6-4 |
| 2018-04-30 | Seoul CH | Q1 | W | Frederik Nielsen | 545 | 6-4 6-1 |
| 2016-11-14 | Toyota CH | QF | L | Luke Saville | 299 | 6-4 6-0 |
| 2016-11-14 | Toyota CH | R16 | W | Go Soeda | 113 | 6-4 4-6 7-5 |
| 2016-11-14 | Toyota CH | R32 | W | Soon Woo Kwon | 292 | 6-4 2-6 6-1 |
| 2016-11-14 | Toyota CH | Q3 | W | Hiroki Kondo | 1765 | 6-4 6-2 |
| 2016-11-14 | Toyota CH | Q2 | W | Masaya Kobayashi | 1182 | 6-2 6-3 |
| 2016-11-14 | Toyota CH | Q1 | W | Sho Shimabukuro | 1369 | 4-6 6-3 6-1 |
| 2016-07-15 | Davis Cup G1 R2: IND vs KOR | RR | W | Ramkumar Ramanathan | 217 | 6-3 5-7 7-6(2) |
| 2016-07-15 | Davis Cup G1 R2: IND vs KOR | RR | L | Saketh Myneni | 150 | 6-1 3-6 6-4 3-6 5-2 RET |
| 2016-05-09 | Seoul CH | Q1 | L | Edward Corrie | 396 | 7-5 6-4 |
| 2016-05-02 | Busan CH | Q3 | L | Jimmy Wang | 330 | 6-7(5) 6-1 6-3 |
| 2016-05-02 | Busan CH | Q2 | W | Hong Chung | 691 | 7-6(11) 7-5 |
| 2016-05-02 | Busan CH | Q1 | W | Woong Sun Jun | 1210 | 3-6 6-4 6-1 |
| 2016-04-11 | Gwangju CH | R16 | L | Hong Chung | 853 | 7-5 6-2 |
| 2016-04-11 | Gwangju CH | R32 | W | Yunseong Chung | 768 | 6-4 6-2 |
| 2015-05-04 | Busan CH | R32 | L | Denis Kudla | 143 | 6-0 6-4 |
| 2015-03-06 | Davis Cup G1 R1: THA vs KOR | RR | W | Danai Udomchoke | 320 | 6-2 6-1 7-6(2) |
| 2014-09-12 | Davis Cup G1 PO: TPE vs KOR | RR | W | Jui Chen Hung | 756 | 6-2 6-2 6-0 |
| 2014-06-16 | Tianjin CH | R32 | L | Alexander Kudryavtsev | 169 | W/O |
| 2014-05-05 | Gimcheon CH | R32 | L | Austin Krajicek | 214 | 6-4 4-6 6-4 |
| 2014-04-04 | Davis Cup G1 R2: KOR vs IND | RR | L | Somdev Devvarman | 88 | 6-4 5-7 6-3 6-1 |
| 2014-04-04 | Davis Cup G1 R2: KOR vs IND | RR | W | Sanam Singh | 371 | 7-6(5) 6-4 6-4 |
| 2013-11-04 | Yeongwol CH | QF | L | Di Wu | 234 | 6-1 6-0 |
| 2013-11-04 | Yeongwol CH | R16 | W | Julian Reister | 85 | 4-6 6-1 6-1 |
| 2013-11-04 | Yeongwol CH | R32 | W | Liang Chi Huang | 244 | 6-2 1-6 6-4 |
| 2013-10-28 | Seoul CH | R32 | L | Ze Zhang | 272 | 1-6 6-4 6-3 |
| 2013-10-21 | Melbourne CH | R16 | L | Tatsuma Ito | 191 | 6-3 6-3 |
| 2013-10-21 | Melbourne CH | R32 | W | Matt Reid | 232 | 6-3 6-4 |
| 2013-10-07 | Tashkent CH | R16 | L | Dudi Sela | 87 | 6-4 6-3 |
| 2013-10-07 | Tashkent CH | R32 | W | Valery Rudnev | 257 | 6-3 6-3 |
| 2013-09-16 | Kaohsiung CH | QF | L | Matthew Ebden | 135 | 6-1 6-2 |
| 2013-09-16 | Kaohsiung CH | R16 | W | Tsung Hua Yang | 285 | 3-6 7-6(7) 6-4 |
| 2013-09-16 | Kaohsiung CH | R32 | W | Michael Russell | 97 | 6-7(3) 4-1 RET |
| 2013-09-02 | Shanghai CH | R32 | L | Jung Woong Na | 425 | 7-6(1) 6-3 |
| 2013-07-22 | Astana CH | R32 | L | Alexander Kudryavtsev | 414 | 7-6(5) 6-4 |
| 2013-05-13 | Busan CH | R32 | L | Matthew Ebden | 124 | 4-6 6-2 6-0 |
| 2013-04-15 | Sarasota CH | R32 | L | Ilija Bozoljac | 332 | 6-3 4-6 6-4 |
| 2013-04-05 | Davis Cup G1 R2: JPN vs KOR | RR | W | Go Soeda | 86 | 5-7 7-6(5) 6-4 6-3 |
| 2012-10-22 | Seoul CH | QF | L | Yuichi Sugita | 135 | 6-0 3-6 6-2 |
| 2012-10-22 | Seoul CH | R16 | W | Tatsuma Ito | 60 | 6-0 6-3 |
| 2012-10-22 | Seoul CH | R32 | W | Hyun Woo Nam | 607 | 4-6 7-6(4) 6-3 |
| 2012-09-10 | Ningbo CH | R16 | L | Chu Huan Yi | 710 | 3-6 7-5 7-5 |
| 2012-09-10 | Ningbo CH | R32 | W | Yasutaka Uchiyama | 328 | 6-3 6-4 |
| 2012-07-30 | Beijing CH | R32 | L | Vincent Millot | 245 | 6-3 6-2 |
| 2012-07-23 | Wuhan CH | R16 | L | Adam Feeney | 790 | 7-6(6) 3-6 6-3 |
| 2012-07-23 | Wuhan CH | R32 | W | Yan Bai | 615 | 6-0 6-4 |