Stadium: Court 5 Round: 27 Ground: Hardcourt indoor
| ITF M15 Nishi-Tama | 2019/03/07 04:00 | Shintaro Imai v Sho Katayama | 6-2,6-3 |
| ITF Japan F1 | 2018/03/06 02:00 | Shintaro Imai v Sho Katayama | 2-6,5-7 |
| ITF M15 Yanagawa | 2023/12/28 01:00 | Sho Katayama v Jay Friend | 3-6,5-7 |
| Challenger Matsuyama | 2023/11/07 03:25 | Sho Katayama v Geoffrey Blancaneaux | 0-6,4-6 |
| Challenger Matsuyama | 2022/11/08 04:50 | Yu Hsiou Hsu v Sho Katayama | 7-5,6-4 |
| ITF M15 Akishima | 2019/06/14 01:00 | Ryohei Tagata v Sho Katayama | 7-6,6-4 |
| ITF M15 Akishima | 2019/06/13 01:00 | Kosuke Okagaki v Sho Katayama | 3-6,3-6 |
| ITF M15 Akishima | 2019/06/12 01:00 | Sho Katayama v Kento Takeuchi | 6-0,6-4 |
| ITF M15 Guam | 2019/06/07 01:35 | Sho Katayama v Hiroyasu Ehara | 3-6,4-6 |
| ITF M15 Guam | 2019/06/06 00:00 | Sho Katayama v Naoki Takeda | 7-6,6-1 |
| Challenger Tyler | 2024/06/02 15:00 | Moerani Bouzige v Shintaro Imai | 6-4,1-6,6-4 |
| Challenger Little Rock | 2024/05/26 18:30 | Rudy Quan v Shintaro Imai | 4-6,6-4,6-2 |
| Challenger Taipei | 2024/05/12 06:40 | Ji Sung Nam v Shintaro Imai | 2-6,6-3,6-3 |
| ITF M25 Nottingham | 2024/05/02 12:10 | Blake Mott v Shintaro Imai | 6-0,6-7,6-2 |
| ITF M25 Nottingham | 2024/05/01 09:00 | Daniel Little v Shintaro Imai | 4-6,4-6 |
| ITF M25 Nottingham | 2024/04/25 14:25 | Shintaro Imai v Blake Mott | 6-4,5-7,4-6 |
| ITF M25 Nottingham | 2024/04/24 09:00 | Martyn Pawelski v Shintaro Imai | 4-6,6-3,3-6 |
| ITF M15 Kashiwa | 2024/04/05 04:30 | Sora Fukuda v Shintaro Imai | 6-2,6-0 |