Stadium: Court 8 Round: 25 Ground: Clay
| ITF Japan F3 | 2016/03/22 01:00 | Kibi, Yuya v Jumpei Yamasaki | 6-3,7-5 |
| ITF Japan F6 | 2015/06/11 01:00 | Kibi, Yuya v Jumpei Yamasaki | 7-6,6-2 |
| ITF Japan F5 | 2018/04/04 01:00 | Shintaro Imai v Jumpei Yamasaki | 6-3,6-4 |
| ITF Japan F5 | 2018/04/02 02:20 | Jumpei Yamasaki v Moritani, Soichiro | 6-1,6-3 |
| ITF Japan F4 | 2018/03/28 01:00 | Jumpei Yamasaki v Makoto Ochi | 1-6,2-6 |
| ITF Japan F4 | 2018/03/26 01:00 | Jumpei Yamasaki v Uesugi, Teppei | 6-2,7-5 |
| ITF Japan F4 | 2018/03/25 01:00 | Jumpei Yamasaki v Tashiro, Yuga | 6-2,6-3 |
| ITF Japan F3 | 2018/03/19 01:00 | Sekiguchi, Shuichi v Jumpei Yamasaki | 6-7,7-6,6-2 |
| ITF Japan F2 | 2018/03/13 03:15 | Nguyen, Daniel v Jumpei Yamasaki | 6-1,2-6,6-1 |
| ITF Japan F2 | 2018/03/12 00:30 | Jumpei Yamasaki v Shirafuji, Naru | 6-0,6-0 |
| ITF Japan F5 | 2018/04/03 01:00 | Zhe Li v Kibi, Yuya | 1-6,6-2,7-5 |
| ITF Japan F4 | 2018/03/28 01:00 | Kibi, Yuya v Tamaki Yamao | 6-0,4-6,2-6 |
| ITF Japan F2 | 2018/03/15 02:40 | Nguyen, Daniel v Kibi, Yuya | 6-2,1-6,6-1 |
| ITF Japan F2 | 2018/03/12 02:30 | Kibi, Yuya v Ryota Tanuma | 6-2,2-6,7-5 |
| ITF Japan F1 | 2018/03/08 03:10 | Niki, Takuto v Kibi, Yuya | 6-3,7-5 |
| ITF Japan F1 | 2018/03/06 02:00 | Kibi, Yuya v Kaito Uesugi | 7-6,4-6,6-3 |
| Kyoto, Japan | 2018/02/20 05:35 | Kibi, Yuya v Hubert Hurkacz | 5-7,3-6 |
| Challenger Kyoto Qual | 2018/02/19 03:30 | Luke Saville v Kibi, Yuya | 3-6,3-6 |