Round: 62 Ground: Hardcourt outdoor
| ITF Japan F3 | 2017/03/18 06:00 | Onozawa, Arata v Fujii, Sota | 6-4,6-3 |
| Challenger Kyoto Qual | 2017/02/19 05:25 | Wang, Jimmy v Onozawa, Arata | 6-3,6-4 |
| Challenger Kyoto Qual | 2017/02/18 07:35 | Onozawa, Arata v Yusuke Takahashi | 6-3,6-7,6-3 |
| Others | 2016/11/12 07:35 | Takeuchi, Kento (1987) v Onozawa, Arata | 7-6,6-2 |
| Others | 2016/11/12 02:10 | Onishi, Ken v Onozawa, Arata | 3-6,4-6 |
| ITF Vietnam F4 | 2016/09/15 03:00 | Onozawa, Arata v Congsup Congcar | 5-7,4-6 |
| ITF Vietnam F4 | 2016/09/12 03:00 | Onozawa, Arata v Sano, Koichi | 2-6,7-6,6-0 |
| ITF Korea F7 | 2016/09/01 04:05 | Makoto Ochi v Onozawa, Arata | 6-2,6-2 |
| ITF Japan F3 | 2017/03/18 06:00 | Kawakami, Rimpei v Wei-De Lin | 6-2,6-2 |
| ITF Japan F3 | 2017/03/18 00:30 | Kawakami, Rimpei v Rio Noguchi | 6-4,7-6 |
| ITF Vietnam F4 | 2016/09/13 03:00 | Cao, Zhaoyi v Kawakami, Rimpei | 6-4,7-5 |
| ITF Vietnam F4 | 2016/09/11 03:00 | Abdul Razak, Ahmed Deedat v Kawakami, Rimpei | 2-6,0-6 |
| ITF Vietnam F4 | 2016/09/10 03:00 | Kawakami, Rimpei v Rynsaardt, Patrick | 6-2,6-3 |
| ITF Korea F8 | 2016/09/03 05:00 | Kawakami, Rimpei v Shin, Seung-Hun | 6-3,2-6,4-6 |
| ITF Korea F8 | 2016/08/28 04:30 | Kawakami, Rimpei v Kang, Ku Keon | 7-5,3-6,3-6 |