Stadium: Center Court Round: 45 Ground: Hardcourt outdoor
| ITF China F5 | 2018/05/11 06:05 | Jumpei Yamasaki v Kuan-Yi Lee | 6-4,6-4 |
| ITF Singapore F2 | 2018/05/21 02:00 | Yu Hsiou Hsu v Kuan-Yi Lee | 6-1,6-3 |
| ITF China F6 | 2018/05/18 03:55 | Sami Reinwein v Kuan-Yi Lee | 6-0,6-4 |
| ITF China F6 | 2018/05/14 05:50 | Tao Mu v Kuan-Yi Lee | 4-6,3-6 |
| ITF China F5 | 2018/05/11 06:05 | Jumpei Yamasaki v Kuan-Yi Lee | 6-4,6-4 |
| ITF China F5 | 2018/05/10 04:35 | Sami Reinwein v Kuan-Yi Lee | 3-6,2-6 |
| ITF China F5 | 2018/05/09 03:30 | Li-Wei Tan v Kuan-Yi Lee | 5-7,1-6 |
| Challenger Taipei Qual | 2018/04/07 07:40 | Jimmy Wang v Kuan-Yi Lee | 6-3,6-1 |
| ITF Japan F4 | 2018/03/31 02:30 | Kuan-Yi Lee v Renta Tokuda | 0-6,2-6 |
| ITF Japan F7 | 2018/06/07 04:50 | Kaito Itsusaki v Jumpei Yamasaki | 3-6,4-6 |
| ITF Japan F7 | 2018/06/04 03:10 | Kazuki Shimizu v Jumpei Yamasaki | 2-6,4-6 |
| ITF China F6 | 2018/05/16 02:00 | Jumpei Yamasaki v Kento Takeuchi | 4-6,6-4,6-7 |
| ITF China F6 | 2018/05/14 05:45 | Huixin Wang v Jumpei Yamasaki | 3-6,3-6 |
| ITF China F5 | 2018/05/12 03:00 | Jumpei Yamasaki v Rigele Te | 3-6,6-7 |
| ITF China F5 | 2018/05/11 06:05 | Jumpei Yamasaki v Kuan-Yi Lee | 6-4,6-4 |
| ITF China F5 | 2018/05/10 03:00 | Cheong-Eui Kim v Jumpei Yamasaki | 2-6,5-7 |
| ITF China F5 | 2018/05/09 02:00 | Weibowen Zou v Jumpei Yamasaki | 0-6,0-6 |