Stadium: Court 16 Round: 25
| ITF Korea F5 | 2018/08/20 01:00 | Ren Nakamura v Ki Su Jung | 6-2,6-0 |
| ITF Korea F5 | 2018/08/18 01:00 | Ren Nakamura v Mingyuan Yang | 6-1,6-0 |
| ITF Korea F4 | 2018/08/13 03:00 | Ren Nakamura v Tae-Woo Lee | 1-6,1-6 |
| ITF Austria F5 Qual | 2018/07/29 10:30 | Ren Nakamura v Vital Flurin Leuch | 6-3,6-7,4-6 |
| ITF Austria F4 Qual | 2018/07/21 10:00 | Andreas Kramer v Ren Nakamura | 6-3,6-4 |
| ITF Guam F1 | 2018/06/18 02:10 | Hiroyasu Ehara v Ren Nakamura | 6-4,6-4 |
| ITF Tunisia F21 | 2018/05/26 10:00 | Ren Nakamura v Sacha Modica | 3-6,2-6 |
| ITF Tunisia F20 | 2018/05/23 11:55 | Ren Nakamura v Quentin Gueydan | 3-6,0-6 |
| Challenger Gwangju | 2018/08/14 06:30 | Bradley Mousley v Ji Hoon Son | 6-3,6-2 |
| Challenger Gwangju Qual | 2018/08/13 01:00 | Yuya Kibi v Ji Hoon Son | 3-6,4-6 |
| Challenger Gwangju Qual | 2018/08/11 03:35 | Ji Hoon Son v Xin Gao | 7-5,6-3 |
| ITF China F10 | 2018/07/10 02:00 | Ji Hoon Son v Xin Gao | 6-7,6-7 |
| ITF China F9 | 2018/07/08 03:00 | Ji Hoon Son v Yan Bai | 7-6,4-6,4-6 |
| ITF China F9 | 2018/07/07 07:25 | Seong Chan Hong v Ji Hoon Son | 6-7,1-6 |
| ITF China F9 | 2018/07/06 03:00 | Hao Wu v Ji Hoon Son | 1-6,5-7 |
| ITF China F9 | 2018/07/05 05:30 | Ji Hoon Son v Kousuke Ogura | 6-2,6-4 |