Round: 54 Ground: Clay
| ITF Japan F4 | 2017/03/25 03:00 | Aoran Wang v Yuichiro Inui | 6-4,6-2 |
| ITF Australia F3 Qual | 2017/03/18 03:00 | Scott Puodziunas v Yuichiro Inui | 6-2,6-7,6-3 |
| ITF Australia F2 Qual | 2017/03/12 00:00 | Scott Puodziunas v Yuichiro Inui | 6-4,6-2 |
| ITF Japan F1 | 2017/03/05 01:00 | Katsuki Nagao v Yuichiro Inui | 6-3,6-2 |
| ITF Kuwait F3 | 2016/11/14 23:00 | Giovani Samaha v Yuichiro Inui | 6-3,6-7,7-6 |
| ITF Kuwait F3 Qual | 2016/11/12 23:00 | Thomas Linge v Yuichiro Inui | 2-6,1-6 |
| ITF Kuwait F3 Qual | 2016/11/12 08:33 | Abdulaziz Redha v Yuichiro Inui | 5-7,0-6 |
| ITF Kuwait F3 Qual | 2016/11/11 23:00 | Abdulaziz Redha v Yuichiro Inui | 5-7,0-6 |
| ITF Japan F4 | 2017/03/29 05:40 | Naoki Tajima v Yusuke Takahashi | 6-3,1-6,4-6 |
| Challenger Kyoto Qual | 2017/02/18 04:20 | Evgeny Karlovskiy v Naoki Tajima | 6-3,6-1 |
| ITF Japan F1 | 2016/03/05 03:00 | Tung-Lin Wu v Naoki Tajima | 6-4,5-7,6-4 |