Stadium: Court 5 Round: 27 Ground: Hardcourt outdoor
| ITF Guam F1 | 2018/06/22 00:00 | Hiroyasu Ehara v Sho Katayama | 7-6,6-4 |
| 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 M15 Guam | 2019/06/06 00:00 | Sho Katayama v Naoki Takeda | 7-6,6-1 |
| ITF M15 Guam | 2019/06/04 01:55 | Sho Katayama v Tomohiro Masabayashi | 6-4,7-6 |
| ITF M25 Matsuyama | 2019/04/10 03:30 | Takuto Niki v Sho Katayama | 6-2,6-3 |
| ITF M15 Kofu | 2019/03/21 04:40 | Takuto Niki v Sho Katayama | 4-6,7-6,6-4 |
| ITF M15 Kofu | 2019/03/20 07:15 | Seita Watanabe v Sho Katayama | 3-6,2-6 |
| ITF M15 Nishi-Tokyo | 2019/03/12 03:20 | Ryota Tanuma v Sho Katayama | 6-4,2-6,10-5 |
| ITF M15 Nishi-Tokyo | 2019/03/11 01:00 | Shota Tange v Sho Katayama | 3-6,3-6 |
| ITF M15 Nishi-Tama | 2019/03/07 04:00 | Shintaro Imai v Sho Katayama | 6-2,6-3 |
| ITF M15 Guam | 2019/06/06 01:25 | Jake Delaney v Hiroyasu Ehara | 2-6,3-6 |
| ITF M15 Guam | 2019/06/05 05:35 | Jurence Zosimo Mendoza v Hiroyasu Ehara | 4-6,4-6 |
| ITF M25 Nonthaburi | 2019/05/23 06:05 | Rio Noguchi v Hiroyasu Ehara | 7-5,6-2 |
| ITF M25 Nonthaburi | 2019/05/22 08:05 | Hiroyasu Ehara v Alexander Crnokrak | 7-5,6-2 |
| ITF M25 Luan | 2019/05/14 05:15 | Hiroyasu Ehara v Issei Okamura | 4-6,2-6 |
| ITF M25 Wuhan | 2019/05/09 02:00 | Wishaya Trongcharoenchaikul v Hiroyasu Ehara | 7-6,6-7,7-5 |
| ITF M25 Wuhan | 2019/05/08 04:20 | Chukang Wang v Hiroyasu Ehara | 0-6,4-6 |
| ITF M25 Matsuyama | 2019/04/10 03:30 | Wishaya Trongcharoenchaikul v Hiroyasu Ehara | 3-6,7-6,6-4 |