Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF China F8 | 2018/06/08 04:10 | Sho Katayama v Hiroyasu Ehara | 0-6,2-6 |
| ITF Singapore F1 | 2017/05/26 03:00 | Sho Katayama v Hiroyasu Ehara | 3-6,6-4,2-6 |
| ITF Japan F4 | 2017/03/29 03:40 | Hiroyasu Ehara v Sho Katayama | 2-6,4-6 |
| ITF Japan F2 | 2017/03/13 04:00 | Sho Katayama v Hiroyasu Ehara | 6-3,7-6 |
| ITF Guam F1 | 2018/06/20 02:00 | Hiroyasu Ehara v Naru Shirafuji | 6-4,6-3 |
| ITF Guam F1 | 2018/06/18 02:10 | Hiroyasu Ehara v Ren Nakamura | 6-4,6-4 |
| ITF China F8 | 2018/06/09 05:15 | Hiroyasu Ehara v Zhe Li | 3-6,6-7 |
| ITF China F8 | 2018/06/08 04:10 | Sho Katayama v Hiroyasu Ehara | 0-6,2-6 |
| ITF China F8 | 2018/06/06 03:25 | RunYu Zhao v Hiroyasu Ehara | 3-6,1-6 |
| ITF China F8 | 2018/06/04 03:25 | Qun Gao v Hiroyasu Ehara | 4-6,7-6,2-6 |
| ITF China F7 | 2018/05/31 04:30 | Hiroyasu Ehara v Yecong He | 6-4,4-6,1-6 |
| ITF China F7 | 2018/05/29 02:00 | Hiroyasu Ehara v Jie Cui | 6-4,6-2 |
| ITF Guam F1 | 2018/06/20 02:10 | Jeremy Sonkin v Sho Katayama | 6-7,5-7 |
| ITF Guam F1 | 2018/06/18 00:00 | Ken Onoda v Sho Katayama | 3-6,2-6 |
| ITF Japan F8 | 2018/06/16 02:00 | Gengo Kikuchi v Sho Katayama | 6-4,7-5 |
| ITF Japan F8 | 2018/06/15 04:05 | Sho Katayama v Kaito Uesugi | 6-3,7-6 |
| ITF Japan F8 | 2018/06/14 02:50 | Sho Katayama v Keisuke Watanuki | 6-2,6-0 |
| ITF Japan F8 | 2018/06/12 01:00 | Sho Katayama v Haru Inoue | 6-1,6-4 |
| ITF China F8 | 2018/06/08 04:10 | Sho Katayama v Hiroyasu Ehara | 0-6,2-6 |
| ITF China F8 | 2018/06/06 02:00 | Sho Katayama v Bang Shuo Yin | 6-2,6-4 |