| Challenger Gwangju Qual | 2018/08/11 03:40 | Ivan Sabanov v Yuya Kibi | 6-7,1-6 |
| Challenger Jinan | 2018/08/05 04:10 | Alexei Popyrin v Yuya Kibi | 6-1,6-2 |
| Challenger Jinan | 2018/08/04 09:20 | Yuquan Jin v Yuya Kibi | 4-6,2-6 |
| Challenger Chengdu Qual | 2018/07/28 03:40 | Runhao Hua v Yuya Kibi | 5-7,6-4,6-2 |
| ITF China F10 | 2018/07/09 07:15 | Rigele Te v Yuya Kibi | 3-6,6-2,6-1 |
| ITF China F9 | 2018/07/03 09:10 | Yuya Kibi v Min-Kyu Song | 5-7,2-6 |
| ITF Japan F8 | 2018/06/15 01:30 | Yuya Kibi v Gengo Kikuchi | 6-4,4-6,3-6 |
| ITF Japan F8 | 2018/06/14 01:00 | Yuya Kibi v Yunosuke Tanaka | 6-3,6-2 |
| Challenger Gwangju Qual | 2018/08/11 03:35 | Ji Hoon Son v Xin Gao | 7-5,6-3 |
| ITF China F10 | 2018/07/10 02:00 | Ji Hoon Son v Xin Gao | 6-7,6-7 |
| ITF China F9 | 2018/07/08 03:00 | Ji Hoon Son v Yan Bai | 7-6,4-6,4-6 |
| ITF China F9 | 2018/07/07 07:25 | Seong Chan Hong v Ji Hoon Son | 6-7,1-6 |
| ITF China F9 | 2018/07/06 03:00 | Hao Wu v Ji Hoon Son | 1-6,5-7 |
| ITF China F9 | 2018/07/05 05:30 | Ji Hoon Son v Kousuke Ogura | 6-2,6-4 |
| ITF China F9 | 2018/07/03 08:35 | Rui-Xuan Wang v Ji Hoon Son | 2-6,4-6 |
| ITF Korea F3 | 2018/06/19 07:00 | Ji Hoon Son v Jeamoon Lee | 3-6,4-6 |