
ATP #819 · South Korea · 33 years
| Season | Type | Rank | Titles | W-L | Hard | Clay | Grass |
|---|---|---|---|---|---|---|---|
| 2026 | Singles | 1038 | 0 | 5-7 | 5-5 | 0-2 | - |
| 2026 | Doubles | 125 | 6 | 37-19 | 34-12 | 2-5 | 1-1 |
| 2025 | Singles | 730 | 1 | 23-16 | 23-15 | 0-1 | - |
| 2025 | Doubles | 173 | 3 | 42-23 | 37-21 | 4-1 | - |
| 2024 | Singles | 727 | 0 | 14-16 | 12-11 | 2-4 | 0-1 |
| 2024 | Doubles | 123 | 2 | 42-30 | 34-23 | 5-6 | 1-1 |
| 2023 | Singles | 676 | 0 | 15-20 | 13-16 | 2-4 | - |
| 2023 | Doubles | 127 | 3 | 40-29 | 35-23 | 3-4 | - |
| 2022 | Singles | 476 | 1 | 26-19 | 24-15 | 2-4 | - |
| 2022 | Doubles | 172 | 7 | 50-15 | 40-11 | 9-2 | - |
| 2021 | Singles | 432 | 0 | 4-8 | 3-7 | 0-1 | - |
| 2021 | Doubles | 216 | 2 | 11-7 | 11-5 | 0-1 | - |
| 2020 | Singles | 270 | 0 | 2-5 | 2-5 | - | - |
| 2020 | Doubles | 115 | 0 | 5-5 | 5-5 | - | - |
| 2019 | Singles | 247 | 0 | 23-16 | 22-15 | 1-1 | - |
| 2019 | Doubles | 118 | 2 | 35-14 | 35-14 | - | - |
| 2018 | Singles | 366 | 0 | 4-2 | 4-2 | - | - |
| 2018 | Doubles | 363 | 1 | 3-0 | 3-0 | - | - |
| 2016 | Singles | 566 | 0 | 1-2 | 1-2 | - | - |
| 2016 | Doubles | 491 | 0 | 2-1 | 2-1 | - | - |
| 2015 | Singles | 564 | 0 | 6-6 | 6-6 | - | - |
| 2015 | Doubles | 329 | 0 | 6-5 | 6-4 | 0-1 | - |
| 2014 | Singles | 461 | 0 | 3-6 | 3-6 | - | - |
| 2014 | Doubles | 309 | 0 | 4-6 | 4-6 | - | - |
| 2013 | Singles | 585 | 0 | 21-20 | 21-19 | 0-1 | - |
| 2013 | Doubles | 337 | 0 | 5-7 | 5-7 | - | - |
| 2012 | Singles | 484 | 0 | 19-20 | 19-19 | - | 0-1 |
| 2012 | Doubles | 412 | 0 | 5-2 | 5-2 | - | - |
| 2011 | Singles | 1939 | 0 | 1-3 | 1-3 | - | - |
| 2011 | Doubles | 963 | 0 | 4-3 | 4-3 | - | - |
| 2010 | Singles | 1050 | 0 | 0-2 | 0-2 | - | - |
Sung Nam Ji (from South Korea, aged 33).