Stadium: Court 13 Round: 62
| ITF Korea F5 | 2018/08/19 02:00 | William Ma v Seoung Hun Lee | 6-3,4-6,3-6 |
| ITF Korea F5 | 2018/08/18 01:00 | Young Seok Lee v Seoung Hun Lee | 3-6,2-6 |
| ITF Korea F4 | 2018/08/13 01:00 | Ku Keon Kang v Seoung Hun Lee | 6-2,6-2 |
| ITF Korea F4 | 2018/08/12 02:00 | Jae Won Yun v Seoung Hun Lee | 6-3,2-6,6-7 |
| ITF Korea F3 Qual | 2018/06/16 01:00 | Geon Ju Shin v Seoung Hun Lee | 3-6,4-6 |
| ITF Korea F2 | 2018/06/10 05:00 | Sang-Woo Noh v Seoung Hun Lee | 6-3,6-3 |
| ITF Korea F2 | 2018/06/09 02:00 | Seoung Hun Lee v Geon Ju Shin | 6-3,6-4 |
| ITF Korea F1 | 2018/06/02 02:00 | Sung Jun Park v Seoung Hun Lee | 6-1,6-1 |
| ITF Korea F5 | 2018/08/19 02:00 | Woobin Shin v Dong Ju Kim | 1-6,1-6 |
| ITF Korea F3 Qual | 2018/06/16 02:00 | Ilsang Yoon v Dong Ju Kim | 6-2,6-2 |
| Challenger Busan Qual | 2018/05/12 01:00 | Dong Ju Kim v Tae-Woo Lee | 4-6,4-6 |
| Challenger Gimcheon Qual | 2018/05/05 06:00 | Young Seok Kim v Dong Ju Kim | 6-1,6-3 |
| Challenger Seoul Qual | 2018/04/28 01:30 | Sanhui Shin v Dong Ju Kim | 6-4,6-4 |
| ITF Korea F5 | 2017/06/28 04:40 | Dong Ju Kim v Hyun-Woo Nam | 0-6,4-6 |
| ITF Korea F5 | 2017/06/27 01:30 | Sungbeen Sim v Dong Ju Kim | 3-6,6-3,2-6 |