Round: 62 Ground: Hardcourt outdoor
| ITF Japan F3 | 2017/03/18 03:00 | タナカ,ユウノスケ v Chang, Yu | 2-6,6-2,6-4 |
| ITF China F3 Qual | 2017/02/25 01:00 | リ,ユアンフェング v Chang, Yu | 7-5,6-3 |
| ITF China F2 | 2017/02/21 02:00 | ワン チューハン v Chang, Yu | 6-1,1-6,6-3 |
| ITF China F2 Qual | 2017/02/20 03:40 | 王 康傑(ウォン・ホング・キット) v Chang, Yu | 6-4,4-6,2-6 |
| ITF China F2 Qual | 2017/02/19 05:00 | Chang, Yu v ワン,ルイカイ | 1-6,7-6,6-2 |
| ITF China F2 Qual | 2017/02/18 05:25 | Chang, Yu v Fang, Ruitong | 6-0,6-2 |
| Bangkok-2, Thailand, Qualifying | 2017/01/07 05:35 | クアン v Chang, Yu | 3-6,7-5,7-5 |
| Vietnam F8, Singles | 2016/10/23 02:00 | Chang, Yu v Kawin, Patcharapol | 4-6,7-6,6-0 |
| ITF Japan F2 | 2017/03/14 04:20 | 高橋 悠介 v Watanuki, Keisuke | 6-2,6-2 |
| ITF Japan F2 | 2017/03/13 01:00 | Wachiramanowong, Kittiphong v Watanuki, Keisuke | 4-6,6-7 |
| ITF Japan F2 | 2017/03/12 02:00 | Watanuki, Keisuke v Fujii, Shinta | 6-2,2-6,6-2 |
| ITF Japan F2 | 2017/03/11 03:00 | 川橋 勇太 v Watanuki, Keisuke | 2-6,2-6 |
| ITF Japan F1 | 2017/03/06 01:00 | Itsusaki, Kaito v Watanuki, Keisuke | 6-3,6-3 |
| ITF Japan F1 | 2017/03/05 01:00 | Osafune, Masaki v Watanuki, Keisuke | 6-7,6-0,2-6 |
| ITF Japan F8 | 2016/06/16 02:15 | Watanuki, Keisuke v 片山 翔 | 3-6,1-6 |
| ITF Japan F8 | 2016/06/15 04:30 | タケシマ,シュンロウ v Watanuki, Keisuke | 6-7,0-6 |