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