Round: 62 Ground: Hardcourt outdoor
| ITF Japan F1 | 2017/03/05 01:00 | Ono, Yohei v Otsuka, Yohei | 6-3,6-3 |
| ITF Japan F8 | 2016/06/12 01:00 | Matsuzaki, Yutaro v Otsuka, Yohei | 6-2,6-2 |
| ITF Japan F8 | 2016/06/11 04:00 | Otsuka, Yohei v クボ・タカヒロ | 6-2,6-3 |
| ITF Japan F5 | 2016/04/03 02:00 | Hashimoto, Taiki v Otsuka, Yohei | 6-0,6-1 |
| ITF Japan F3 | 2016/03/19 00:30 | ウー・タンリン v Otsuka, Yohei | 6-1,6-3 |
| ITF Japan F1 | 2016/03/05 01:00 | Otsuka, Yohei v モリタニ,ソウイチロウ | 3-6,3-6 |
| ITF Japan F6 Qual | 2015/06/07 01:00 | 越智 真 v Otsuka, Yohei | 3-6,6-0,6-1 |
| ITF Japan F4 | 2015/03/28 00:30 | 田沼 諒太 v Otsuka, Yohei | 6-4,6-1 |
| ITF Japan F2 | 2017/03/14 05:30 | Cao, Zhaoyi v チョン・ホン | 6-7,6-7 |
| ITF Japan F1 | 2017/03/06 01:00 | Cao, Zhaoyi v Sasai, Masaki | 0-6,1-6 |
| ITF Japan F1 | 2017/03/05 01:00 | Cao, Zhaoyi v シミズ,カズキ | 2-6,6-2,7-5 |
| Yokohama, Japan, Qualifying | 2017/02/25 06:40 | アレックス・ボルト v Cao, Zhaoyi | 6-3,6-4 |
| ITF China F1 Qual | 2017/02/14 02:00 | Cao, Zhaoyi v Zhong, Su Hao | 4-6,7-5,4-6 |
| ITF China F1 Qual | 2017/02/13 02:00 | Cao, Zhaoyi v バコドゥル,ファリドゥニ | 6-4,6-2 |
| ITF China F1 Qual | 2017/02/12 05:25 | Cao, Zhaoyi v チェン,リアン | 6-4,6-1 |
| Suzhou, China | 2016/10/25 04:45 | ウ,ディ v Cao, Zhaoyi | 6-1,6-1 |