| ITF Korea F5 | 2018/08/19 02:00 | Seong Taek Im v Seungri Choi | 6-3,6-2 |
| ITF Korea F5 | 2018/08/18 03:00 | Seungri Choi v Hyun Sik Go | 6-4,7-5 |
| ITF Korea F3 Qual | 2018/06/18 03:30 | Seungri Choi v Ilsang Yoon | 3-6,2-6 |
| ITF Korea F2 | 2018/06/09 01:00 | Jaeheon Yoon v Seungri Choi | 6-1,7-5 |
| ITF Korea F1 | 2018/06/02 01:00 | Hyeong Jin Cho v Seungri Choi | 6-2,6-4 |
| Challenger Gwangju Qual | 2017/09/16 02:55 | Seungri Choi v Miliaan Niesten | 2-6,4-6 |
| ITF Korea F5 | 2017/06/28 01:00 | Seungri Choi v Min-Kyu Song | 1-6,2-6 |
| ITF Korea F4 | 2017/06/20 01:00 | Makoto Ochi v Seungri Choi | 6-1,6-1 |
| ITF Korea F3 Qual | 2018/06/16 01:00 | Ju-Hae Moon v Seung Heon Hong | 6-4,6-3 |