Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF Thailand F1 | 2018/08/18 02:00 | Yuttana Charoenphon v Kamchai, Thammarat | 6-1,6-4 |
| ITF Korea F5 | 2018/08/21 01:00 | Ren Nakamura v Son, Ji Hoon | 6-4,4-6,3-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Ren Nakamura v Jung, Ki-Su | 6-2,6-0 |
| ITF Korea F5 | 2018/08/18 01:00 | Ren Nakamura v Yang, Mingyuan | 6-1,6-0 |
| ITF Korea F4 | 2018/08/13 03:00 | Ren Nakamura v Lee, Tae-Woo | 1-6,1-6 |
| ITF Austria F5 Qual | 2018/07/29 10:30 | Ren Nakamura v Leuch, Vital Flurin | 6-3,6-7,4-6 |
| ITF Austria F4 Qual | 2018/07/21 10:00 | Kramer, Andreas v Ren Nakamura | 6-3,6-4 |
| ITF Guam F1 | 2018/06/18 02:10 | Ehara, Hiroyasu v Ren Nakamura | 6-4,6-4 |
| ITF Tunisia F21 | 2018/05/26 10:00 | Ren Nakamura v Modica, Sacha | 3-6,2-6 |