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