Stadium: ourt 5C Round: 44 Ground: Hardcourt outdoor
| ITF China F7 Qual | 2018/05/27 04:40 | Zhou, Sheng Hao v Yifeng Fu | 6-0,6-2 |
| ITF China F8 Qual | 2018/06/03 02:00 | Cai, Lewei v Tagashira, Kento | 1-6,2-6 |
| Turkey F14, Singles Qualifying | 2018/04/07 11:00 | Cai, Lewei v Cammarata, Alberto | 2-6,1-6 |
| ITF Spain F7 | 2018/03/16 12:00 | Barros, Emmanuel v Cai, Lewei | 6-1,6-2 |
| ITF China F3 Qual | 2018/01/20 02:30 | Li, Jiayi v Cai, Lewei | 6-1,6-7,6-0 |
| ITF China F2 Qual | 2018/01/13 07:30 | Cai, Lewei v Hanyi Liu | 3-6,2-6 |
| ITF China F1 Qual | 2018/01/06 04:15 | Zhang, Naifu v Cai, Lewei | 6-2,6-0 |
| ITF China F11 Qual | 2017/07/01 03:25 | Cai, Lewei v Peng, Changwei | 0-6,3-6 |
| ITF China F10 | 2017/06/24 02:00 | Cai, Lewei v Ye Cong Mo | 1-6,0-6 |