| Challenger Bastad Qual | 2018/07/07 10:55 | Zihao Xia v Lukas Klein | 1-6,1-6 |
| Challenger Recanati Qual | 2018/07/01 10:05 | Zihao Xia v Antoine Escoffier | 2-6,3-6 |
| Challenger Recanati Qual | 2018/06/30 09:30 | Gianluca Di Nicola v Zihao Xia | 6-7,2-6 |
| ITF China F7 | 2018/05/30 02:30 | Di Wu v Zihao Xia | 6-1,6-4 |
| ITF China F7 | 2018/05/28 05:10 | Zihao Xia v Francis Casey Alcantara | 6-4,6-1 |
| ITF China F6 | 2018/05/16 02:00 | Sami Reinwein v Zihao Xia | 6-4,6-3 |
| ITF China F6 | 2018/05/14 05:10 | James Frawley v Zihao Xia | 4-6,3-6 |
| ITF China F5 | 2018/05/08 02:00 | Zihao Xia v Harri Heliovaara | 6-4,3-6,2-6 |
| Challenger Gatineau | 2018/07/21 18:10 | Ugo Humbert v Go Soeda | 6-4,6-1 |
| Challenger Gatineau | 2018/07/20 20:25 | Maximilian Neuchrist v Go Soeda | 6-7,3-6 |
| Challenger Gatineau | 2018/07/19 15:00 | Jacob Grills v Go Soeda | 6-2,1-6,4-6 |
| Challenger Gatineau | 2018/07/17 14:00 | Yusuke Takahashi v Go Soeda | 4-6,3-6 |
| Challenger Winnipeg | 2018/07/14 19:55 | Lucas Miedler v Go Soeda | 6-3,3-6,6-3 |
| Challenger Winnipeg | 2018/07/13 18:10 | Alexis Galarneau v Go Soeda | 0-6,2-6 |
| Challenger Winnipeg | 2018/07/12 20:00 | Yunseong Chung v Go Soeda | 2-6,6-2,4-6 |
| Challenger Winnipeg | 2018/07/10 23:00 | Laurynas Grigelis v Go Soeda | 3-6,0-6 |