Stadium: Court 16 Round: 25 Ground: Clay
| ITF Japan F6 Qual | 2018/04/09 02:50 | Kazuki Nishiwaki v Onozawa, Arata | 7-5,6-3 |
| ITF Japan F3 | 2018/03/17 04:00 | Issei Okamura v Onozawa, Arata | 7-6,6-0 |
| Challenger Kyoto Qual | 2018/02/17 06:55 | Kim, Cheong-Eui v Onozawa, Arata | 2-6,6-3,6-4 |
| ITF Vietnam F3 | 2017/11/23 03:00 | Arjun Kadhe v Onozawa, Arata | 7-5,6-2 |
| ITF Vietnam F3 | 2017/11/21 03:00 | Onozawa, Arata v Takeshima, Shunrou | 6-0,6-3 |
| ITF Vietnam F3 | 2017/11/20 03:00 | Bosnjak, Mislav v Onozawa, Arata | 0-6,2-6 |
| ITF Vietnam F3 | 2017/11/19 07:00 | Thinh, Huynh v Onozawa, Arata | 2-6,0-6 |
| ITF Vietnam F1 | 2017/11/04 05:00 | Sookton-Eng, Chanchai v Onozawa, Arata | 5-7,3-6 |
| ITF Japan F6 Qual | 2018/04/09 02:45 | Aoran Wang v Ono, Masayoshi | 3-6,6-2,6-2 |
| ITF Japan F6 Qual | 2018/04/08 04:00 | Aoran Wang v Daisuke Sumizawa | 6-2,6-2 |
| ITF Japan F5 | 2018/03/31 00:30 | Kawakami, Rimpei v Aoran Wang | 6-3,4-6,6-2 |
| ITF Japan F4 | 2018/03/25 01:00 | Liu, Shao-Fan v Aoran Wang | 6-3,6-0 |
| ITF Japan F3 | 2018/03/17 02:30 | Aoran Wang v Uesugi, Teppei | 6-7,2-6 |
| ITF China F3 | 2018/01/24 04:30 | Aoran Wang v Kuan-Yi Lee | 2-6,2-6 |
| ITF China F3 | 2018/01/22 05:45 | Markovic, Goran v Aoran Wang | 4-6,3-6 |
| ITF China F2 | 2018/01/16 03:35 | Nitin Kumar Sinha v Aoran Wang | 6-3,6-3 |