Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF Korea F5 | 2017/06/27 01:30 | Sungbeen Sim v Dong Ju Kim | 3-6,6-3,2-6 |
| ITF M15 Monastir | 2021/05/02 09:00 | Dong Ju Kim v Masamichi Imamura | 2-6,3-6 |
| ITF M15 Gimcheon | 2019/06/19 06:10 | Minjong Park v Dong Ju Kim | 6-4,6-0 |
| ITF M15 Gimcheon | 2019/06/10 01:00 | Dong Ju Kim v Sung Jun Park | 3-6,4-6 |
| ITF M15 Daegu | 2019/06/06 03:25 | Seong Chan Hong v Dong Ju Kim | 6-3,6-2 |
| ITF M15 Daegu | 2019/06/04 05:05 | TaeWoo Koo v Dong Ju Kim | 2-6,1-6 |
| Challenger Seoul | 2019/04/29 06:15 | Dong Ju Kim v Jeamoon Lee | 2-6,2-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Seoung Hun Lee v Dong Ju Kim | 6-1,6-1 |
| ITF Korea F5 | 2018/08/19 02:00 | Woobin Shin v Dong Ju Kim | 1-6,1-6 |
| ITF M15 Monastir | 2021/05/09 08:00 | Sungbeen Sim v Francois Musitelli | 2-6,3-6 |
| ITF M15 Monastir | 2021/05/03 13:00 | Sungbeen Sim v Jacob Brumm | 2-6,4-6 |
| ITF M15 Monastir | 2021/05/02 10:30 | Uisung Park v Sungbeen Sim | 6-1,5-7,9-11 |
| ITF M15 Heraklion | 2019/12/09 08:00 | Tim Heger v Sungbeen Sim | 6-4,6-4 |
| ITF M15 Heraklion | 2019/12/08 10:00 | Tom Hands v Sungbeen Sim | 3-6,2-6 |
| ITF M15 Heraklion | 2019/12/01 12:00 | Sungbeen Sim v Yeongseok Jeong | 3-6,2-6 |
| ITF M15 Heraklion | 2019/11/24 10:30 | Lukas H Lilleengen v Sungbeen Sim | 6-3,7-6 |
| ITF M15 Heraklion | 2019/11/18 08:00 | Sungbeen Sim v Lodewijk Weststrate | 1-6,3-6 |