Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF Japan F4 | 2018/03/29 04:15 | Naoki Tajima v Shintaro Imai | 4-6,3-6 |
| ITF M15 Nishi-Tama | 2019/03/10 01:00 | Shintaro Imai v Ji Sung Nam | 6-2,6-2 |
| ITF M15 Nishi-Tama | 2019/03/09 01:00 | Shintaro Imai v Sho Shimabukuro | 6-4,6-3 |
| ITF M15 Nishi-Tama | 2019/03/08 04:10 | Shintaro Imai v Tomohiro Masabayashi | 6-3,6-2 |
| ITF M15 Nishi-Tama | 2019/03/07 04:00 | Shintaro Imai v Sho Katayama | 6-2,6-3 |
| ITF M15 Nishi-Tama | 2019/03/05 03:30 | Yusuke Takahashi v Shintaro Imai | 1-6,7-5,3-6 |
| Challenger - Yokohama | 2019/02/26 01:00 | Shintaro Imai v David Perez Sanz | 2-6,3-6 |
| Challenger - Yokohama | 2019/02/25 01:00 | Cheong-Eui Kim v Shintaro Imai | 6-1,7-5 |
| ITF - M15 Sharm-el-Sheikh | 2019/02/02 08:00 | Karim-Mohamed Maamoun v Shintaro Imai | 6-3,6-2 |
| ITF M15 Nishi-Tama | 2019/03/08 04:30 | Sho Shimabukuro v Naoki Tajima | 6-3,7-5 |
| ITF M15 Nishi-Tama | 2019/03/05 05:25 | Naoki Tajima v Shinji Hazawa | 7-5,6-3 |
| ITF M15 Anning | 2019/01/18 03:00 | Yan Bai v Naoki Tajima | 3-6,6-1,6-0 |
| ITF M15 Anning | 2019/01/17 03:00 | Naoki Tajima v Michael Zhu | 6-2,6-3 |
| ITF M15 Anning | 2019/01/15 02:00 | Naoki Tajima v Liran Chen | 6-2,6-1 |
| ITF M15 Anning | 2019/01/13 03:00 | Naoki Tajima v Agustin Velotti | 6-4,3-6,5-7 |
| ITF M15 Anning | 2019/01/12 03:00 | Naoki Tajima v Shao-Fan Liu | 2-6,6-1,6-3 |
| ITF M15 Anning | 2019/01/11 03:00 | Naoki Tajima v N. Vijay Sundar Prashanth | 6-3,6-2 |