Stadium: Court 10 Round: 25
| ITF Netherlands F5 | 2018/08/21 08:00 | Kazuki Nishiwaki v Alexander Lazov | 6-0,2-6,1-6 |
| ITF Netherlands F4 | 2018/08/18 11:00 | Kazuki Nishiwaki v Niels Lootsma | 2-6,2-6 |
| ITF Netherlands F4 | 2018/08/17 09:00 | Kazuki Nishiwaki v Jesper De Jong | 4-3 |
| ITF Netherlands F4 | 2018/08/16 10:30 | Yannick Mertens v Kazuki Nishiwaki | 3-6,6-7 |
| ITF Netherlands F4 | 2018/08/15 12:45 | Justin Butsch v Kazuki Nishiwaki | 6-7,0-6 |
| ITF Indonesia F3 | 2018/08/07 04:50 | Kazuki Nishiwaki v Ajeet Rai | 3-6,6-7 |
| ITF Hong Kong F1 | 2018/06/25 03:55 | Kazuki Nishiwaki v Makoto Ochi | 7-6,6-2 |
| ITF Singapore F3 | 2018/05/28 05:00 | Maverick Banes v Kazuki Nishiwaki | 6-7,6-4,7-6 |
| ITF China F12 Qual | 2018/08/12 02:00 | Tianjia Guo v Vignesh Peranamallur | 2-6,1-6 |
| ITF China F10 Qual | 2018/07/07 02:00 | Owen Lu v Tianjia Guo | 3-6,6-2,6-4 |
| ITF China F7 | 2018/05/29 03:35 | Natthasith Kunsuwan v Tianjia Guo | 6-1,6-3 |
| ITF China F7 Qual | 2018/05/28 02:00 | Tianjia Guo v Jianhui Li | 1-6,2-6 |
| ITF China F7 Qual | 2018/05/27 02:00 | Tianjia Guo v Ritesh Dubey | 6-0,6-0 |
| ITF China F6 Qual | 2018/05/13 04:15 | Tianjia Guo v Xinmu Zhou | 2-6,2-6 |
| ITF China F5 Qual | 2018/05/05 07:40 | Cameron Lickle v Tianjia Guo | 6-1,6-3 |
| ITF China F4 | 2018/04/30 04:40 | Tianjia Guo v Zihao Xia | 0-6,0-6 |