Stadion: Center Court Round: 28 Ground: Hardcourt outdoor
| ITF - Japan F3 | 2015/03/25 01:00 | Jeamoon Lee v Takuto Niki | 1-6,1-6 |
| ITF - Korea F1 | 2018/06/08 03:30 | Takuto Niki v Hong Chung | 6-1,6-0 |
| ITF - Korea F1 | 2018/06/07 04:25 | Takuto Niki v Sang-Woo Noh | 6-3,6-2 |
| ITF - Korea F1 | 2018/06/06 01:00 | Takuto Niki v Sang Yeop Kim | 6-0,6-0 |
| ITF - Singapur F3 | 2018/05/29 04:05 | Takuto Niki v Congsup Congcar | 5-7,1-6 |
| ITF - Singapur F2 | 2018/05/26 03:00 | Takuto Niki v Collin Altamirano | 6-7,3-6 |
| ITF - Singapur F2 | 2018/05/24 03:00 | Daniel Nolan v Takuto Niki | 6-1,6-7,4-6 |
| ITF - Singapur F2 | 2018/05/23 02:00 | Takuto Niki v Nicholas S. Hu | 6-4,6-4 |
| ITF - Singapur F2 | 2018/05/22 03:50 | James Frawley v Takuto Niki | 6-2,4-6,1-6 |
| ITF - Korea F1 | 2018/06/08 02:00 | Jeamoon Lee v Young-Hoon Jeong | 6-1,6-4 |
| ITF - Korea F1 | 2018/06/07 01:00 | Jae Hwan Kim v Jeamoon Lee | 6-4,2-6,4-6 |
| ITF - Korea F1 | 2018/06/05 03:25 | Jeamoon Lee v Seong Jae Han | 6-1,6-0 |
| Challenger - Busan - Qualifikation | 2018/05/13 02:00 | Yosuke Watanuki v Jeamoon Lee | 6-4,6-4 |
| Challenger - Busan - Qualifikation | 2018/05/12 02:15 | Jeamoon Lee v Seong-Gook Oh | 7-6,6-3 |
| Davis Cup | 2017/09/17 04:05 | Jeamoon Lee v Tung-Lin Wu | 2-6,7-5,4-6 |
| ITF - Korea F4 | 2017/06/23 02:00 | Jeamoon Lee v Young Seok Kim | 6-3,6-7,3-6 |
| ITF - Korea F4 | 2017/06/21 04:30 | Sang-Woo Noh v Jeamoon Lee | 2-6,5-7 |