Round: 44 Ground: Hardcourt outdoor
| ITF Japan F2 | 2017/03/11 03:00 | Itsusaki, Kaito v Nakamura, Yuki | 6-3,6-0 |
| ITF Japan F1 | 2017/03/10 01:00 | Itsusaki, Kaito v 仁木 拓人 | 2-6,4-6 |
| ITF Japan F1 | 2017/03/09 01:00 | Huang, Liang-Chi v Itsusaki, Kaito | 4-6,0-6 |
| ITF Japan F1 | 2017/03/08 03:00 | Hashimoto, Taiki v Itsusaki, Kaito | 2-6,1-6 |
| 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 | Matsuzaki, Yutaro v Itsusaki, Kaito | 4-6,2-6 |
| Yokohama, Japan, Qualifying | 2017/02/26 02:20 | Itsusaki, Kaito v 山﨑 純平 | 3-6,3-6 |
| Yokohama, Japan, Qualifying | 2017/02/25 02:55 | コベルト,ピーター v Itsusaki, Kaito | 6-7,6-7 |
| ITF Japan F1 | 2017/03/05 01:00 | Sano, Koichi v 田代 悠雅 | 2-6,4-6 |
| Vietnam F8, Singles | 2016/09/18 03:00 | Sano, Koichi v Fujii, Shinta | 4-6,3-6 |
| ITF Vietnam F4 | 2016/09/12 03:00 | Onozawa, Arata v Sano, Koichi | 2-6,7-6,6-0 |
| ITF China F13 | 2016/07/20 02:30 | 岡村 一成 v Sano, Koichi | 6-0,6-2 |
| ITF China F13 | 2016/07/19 04:00 | Sano, Koichi v シ,シ | 6-2,7-6 |
| ITF China F12 | 2016/07/13 02:30 | モリタニ,ソウイチロウ v Sano, Koichi | 6-7,6-4,6-1 |
| ITF China F12 | 2016/07/12 02:30 | シャ,ツィアオ v Sano, Koichi | 6-7,3-6 |
| ITF Japan F8 | 2016/06/13 01:00 | Sano, Koichi v 上杉 海斗 | 2-6,4-6 |