Stadium: Court F Round: 25 Ground: Hardcourt outdoor
| Challenger Yokohama Qual | 2018/02/24 01:00 | Maverick Banes v Shintaro Imai | 7-6,1-6,7-6 |
| Challenger Kyoto | 2018/02/20 05:00 | Konstantin Kravchuk v Shintaro Imai | 6-4,7-5 |
| ITF Hong Kong F6 | 2018/01/05 02:00 | Matteo Viola v Shintaro Imai | 7-5,6-2 |
| ITF Hong Kong F6 | 2018/01/04 02:00 | Shintaro Imai v Emil Ruusuvuori | 6-4,6-3 |
| ITF Hong Kong F6 | 2018/01/03 02:00 | Shintaro Imai v Masaya Kobayashi | 6-3,6-0 |
| ITF Hong Kong F6 | 2018/01/02 02:00 | Shintaro Imai v Ki Lung NG | 6-2,6-2 |
| ITF Hong Kong F5 | 2017/12/29 03:00 | Corentin Denolly v Shintaro Imai | 6-4,7-5 |
| ITF Hong Kong F5 | 2017/12/28 02:00 | Jack Murray v Shintaro Imai | 4-6,1-6 |
| Challenger Yokohama Qual | 2018/02/25 02:20 | Hiroki Moriya v Sho Katayama | 6-3,6-0 |
| Challenger Yokohama Qual | 2018/02/24 06:45 | Michal Przysiezny v Sho Katayama | 4-6,6-2,2-6 |
| Challenger Kyoto Qual | 2018/02/17 05:40 | Luke Saville v Sho Katayama | 6-3,6-3 |
| ITF Vietnam F3 | 2017/11/22 03:00 | Sho Katayama v Daniiar Duldaev | 3-6,1-6 |
| ITF Vietnam F3 | 2017/11/21 06:10 | Sho Katayama v Keisuke Numajiri | 6-4,6-4 |
| ITF Vietnam F2 | 2017/11/17 04:35 | Jonathan Gray v Sho Katayama | 6-4,6-1 |
| ITF Vietnam F2 | 2017/11/15 03:00 | Michael Look v Sho Katayama | 3-6,6-7 |
| ITF Vietnam F2 | 2017/11/13 04:00 | Francesco Vilardo v Sho Katayama | 6-7,1-6 |