Stadium: Court G Round: 45 Ground: Hardcourt indoor
| Challenger Shenzhen 2 | 2018/10/28 04:05 | Sumit Nagal v Xin Gao | 6-4,6-2 |
| Challenger Shenzhen 2 | 2018/10/27 07:25 | Xin Gao v Alexander Pavlioutchenkov | 6-1,6-2 |
| Challenger Liuzhou | 2018/10/20 02:00 | Michael Zhu v Xin Gao | 1-6,6-3,6-1 |
| Challenger Kaohsiung | 2018/09/16 07:45 | Yunseong Chung v Xin Gao | 7-5,6-3 |
| Challenger Kaohsiung | 2018/09/15 12:45 | Liang-Yu Lin v Xin Gao | 1-6,0-6 |
| Challenger Shanghai Qual | 2018/09/08 08:15 | Xin Gao v Dayne Kelly | 3-6,2-6 |
| Challenger Zhangjiagang | 2018/09/02 02:00 | Xin Gao v Dayne Kelly | 3-6,2-6 |
| Challenger Gwangju Qual | 2018/08/11 03:35 | Ji Hoon Son v Xin Gao | 7-5,6-3 |
| 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 | Connor Johnson 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 Kevin Kaczynski | 2-6,3-6 |
| 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 |