Round: 62 Ground: Hardcourt outdoor
| ITF Japan F4 | 2016/03/27 03:00 | Teppei Uesugi v Masaki Sasai | 1-6,0-6 |
| ITF Japan F3 | 2017/03/18 06:00 | Hiroyasu Ehara v Masaki Sasai | 6-3,6-4 |
| ITF Japan F2 | 2017/03/17 04:00 | Masaki Sasai v Max Purcell | 3-6,2-6 |
| ITF Japan F2 | 2017/03/16 02:00 | Shintaro Imai v Masaki Sasai | 6-7,3-6 |
| ITF Japan F2 | 2017/03/14 07:45 | Masaki Sasai v Wishaya Trongcharoenchaikul | 6-3,6-3 |
| ITF Japan F2 | 2017/03/12 01:00 | Yusei Fukuoka v Masaki Sasai | 1-6,1-6 |
| ITF Japan F1 | 2017/03/08 03:55 | Peter Kobelt v Masaki Sasai | 4-6,6-4,6-1 |
| ITF Japan F1 | 2017/03/06 01:00 | Zhaoyi Cao v Masaki Sasai | 0-6,1-6 |
| Others | 2016/11/12 00:30 | Masaki Sasai v Young Seok Kim | 1-6,5-7 |
| ITF Japan F4 | 2017/03/26 00:59 | Teppei Uesugi v Yutaro Matsuzaki | 6-1,6-0 |
| ITF Japan F4 | 2017/03/25 01:00 | Teppei Uesugi v Ibuki Furuta | 6-3,6-4 |
| ITF Japan F3 | 2017/03/18 00:30 | Sho Shimabukuro v Teppei Uesugi | 7-6,6-4 |
| ITF Japan F1 | 2017/03/05 01:00 | Teppei Uesugi v Shunrou Takeshima | 4-6,7-5,0-6 |
| ITF Japan F1 | 2017/03/04 01:00 | Ryohei Tagata v Teppei Uesugi | 6-1,1-6,3-6 |
| ITF Japan F8 | 2016/06/14 04:55 | Yuta Shimizu v Teppei Uesugi | 7-5,7-5 |
| ITF Japan F4 | 2016/03/27 03:00 | Teppei Uesugi v Masaki Sasai | 1-6,0-6 |
| ITF Japan F4 | 2016/03/26 04:00 | Teppei Uesugi v Masayoshi Ono | 2-6,6-4,6-2 |