Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| Challenger - Gwangju | 2018/08/14 06:30 | Yusuke Takahashi v Xia, Zihao | 2-6,6-1,2-6 |
| Jinan, China | 2018/08/11 09:45 | Ward, James v Xia, Zihao | 6-2,6-1 |
| Jinan, China | 2018/08/09 07:30 | Wu, Di v Xia, Zihao | 4-6,2-6 |
| Chengdu, China | 2018/08/01 06:15 | Akira Santillan v Xia, Zihao | 3-6,6-2,7-5 |
| Chengdu, China | 2018/07/31 03:00 | Xia, Zihao v Soeda, Go | 7-6,6-3 |
| 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 |
| Challenger - Gwangju | 2018/08/14 08:20 | Nam, Ji Sung v Henri Laaksonen | 6-1,6-1 |
| Challenger Gwangju Qual | 2018/08/13 01:00 | Nam, Ji Sung v Reinwein, Sami | 6-2,6-4 |
| Challenger Gwangju Qual | 2018/08/12 03:25 | Nam, Ji Sung v Mladenov, Vasko | 6-3,6-3 |
| ITF China F10 | 2018/07/13 06:15 | Nam, Ji Sung v Rigele Te | 3-6,4-6 |
| ITF China F10 | 2018/07/11 03:00 | Banes, Maverick v Nam, Ji Sung | 1-6,2-6 |
| ITF China F10 | 2018/07/09 05:00 | Hong, Seong Chan v Nam, Ji Sung | 3-6,3-6 |
| ITF China F9 | 2018/07/02 09:10 | Nam, Ji Sung v Runhao Hua | 6-7,4-6 |
| ITF Korea F3 | 2018/06/24 05:00 | Yunseong Chung v Nam, Ji Sung | 6-1,6-3 |