Stadium: Court Center Round: 25
| Liuzhou, Chine | 2018/10/20 05:30 | Ye Cong Mo v Wang, Ruixuan | 6-4,6-2 |
| ITF Thailand F5 | 2018/09/29 06:00 | Wang, Ruixuan v Liu, Hu | 4-6,4-6 |
| ITF Thailand F4 | 2018/09/24 02:30 | Wang, Ruixuan v Anthony Susanto | 3-6,2-6 |
| ITF Thailand F4 | 2018/09/23 04:00 | Wang, Ruixuan v Gohlke, Delf | 6-3,6-1 |
| ITF Thailand F4 | 2018/09/22 02:30 | Wang, Ruixuan v Rakpuangchon, Vorachon | 6-0,6-2 |
| ITF China F14 | 2018/08/31 04:15 | Wang, Ruixuan v Ranjeet Virali-Murugesan | 6-4,2-6,1-6 |
| ITF China F14 | 2018/08/30 04:05 | Sekhar, S Prithvi v Wang, Ruixuan | 3-6,4-6 |
| ITF China F14 | 2018/08/28 02:00 | Wang, Ruixuan v Mingzhou, Zhou | 6-1,6-0 |
| Challenger Kobe | 2018/11/10 06:00 | Gao, Xin v Kazuki Nishiwaki | 6-4,6-4 |
| ITF Australia F8 | 2018/10/10 01:00 | Colin Sinclair v Kazuki Nishiwaki | 6-7,6-4,6-4 |
| ITF Australia F7 | 2018/10/04 00:00 | Colin Sinclair v Kazuki Nishiwaki | 6-3,6-3 |
| ITF Australia F7 | 2018/10/02 01:45 | Johnson, Connor v Kazuki Nishiwaki | 3-6,3-6 |
| Challenger Shanghai | 2018/09/08 05:00 | Aldin Setkic v Kazuki Nishiwaki | 6-3,6-2 |
| ITF Netherlands F6 | 2018/08/28 08:30 | Kazuki Nishiwaki v Kaczynski, Kevin | 2-6,3-6 |
| ITF Netherlands F5 | 2018/08/21 08:00 | Kazuki Nishiwaki v Lazov, Alexander | 6-0,2-6,1-6 |
| ITF Netherlands F4 | 2018/08/18 11:00 | Kazuki Nishiwaki v Niels Lootsma | 2-6,2-6 |