Stadium: Court C Round: 45 Ground: Hardcourt outdoor
| ITF Canada F7 | 2018/09/12 14:00 | Jack Findel-Hawkins v Sho Katayama | 6-3,6-3 |
| ITF Canada F7 | 2018/09/11 19:45 | Emmett Ward v Sho Katayama | 1-6,1-6 |
| ITF Canada F6 | 2018/09/04 17:00 | Alafia Ayeni v Sho Katayama | 6-2,6-7,6-4 |
| ITF Guam F1 | 2018/06/22 00:00 | Hiroyasu Ehara v Sho Katayama | 7-6,6-4 |
| 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 |
| Challenger Kobe | 2018/11/10 03:00 | Ivan Sabanov v Masayoshi Ono | 7-6,6-2 |
| ITF Australia F7 | 2018/10/01 00:00 | Christian Langmo v Masayoshi Ono | 6-4,7-5 |
| ITF Australia F7 | 2018/09/29 03:45 | Zac Osborne v Masayoshi Ono | 4-6,3-6 |
| ITF Australia F6 | 2018/09/26 03:45 | Matthew Romios v Masayoshi Ono | 3-6,7-6,6-0 |
| ITF Australia F6 | 2018/09/24 02:05 | Masayoshi Ono v Zac Osborne | 6-2,6-1 |
| ITF Australia F6 | 2018/09/23 00:30 | Masayoshi Ono v Beauregard Treyz | 6-2,6-0 |
| ITF Australia F5 | 2018/09/19 00:00 | Ken Cavrak v Masayoshi Ono | 4-6,6-3,6-4 |
| ITF Australia F5 | 2018/09/16 02:35 | Masayoshi Ono v Winter Meagher | 7-6,6-1 |