Stadium: Ct 10 Round: 25 Ground: Hardcourt outdoor
| ITF Australia F6 | 2018/09/25 00:30 | Farren, Connor v Issei Okamura | 3-6,7-6,6-2 |
| ITF Australia F5 | 2018/09/21 01:00 | Klein, Brydan v Issei Okamura | 6-3,6-2 |
| ITF Australia F5 | 2018/09/20 03:55 | Addison, Aaron v Issei Okamura | 2-6,7-6,2-6 |
| ITF Australia F5 | 2018/09/18 00:00 | Puodziunas, Scott v Issei Okamura | 6-7,7-5,4-6 |
| Challenger Gwangju Qual | 2018/08/11 01:30 | Issei Okamura v Na, Jung-Woong | 3-6,6-1,1-6 |
| Jinan, China | 2018/08/06 02:00 | Wang, Tak Khunn v Issei Okamura | 6-1,6-2 |
| Jinan, China | 2018/08/05 02:00 | Lo, Chien Hsun v Issei Okamura | 6-7,1-6 |
| Challenger Chengdu Qual | 2018/07/28 03:35 | Issei Okamura v Blake Ellis | 6-4,1-6,5-7 |
| ITF Australia F7 | 2018/10/01 00:00 | Stouff, Vincent v Brymer, Gage | 6-2,6-4 |
| ITF Australia F7 | 2018/09/29 00:00 | Frawley, James v Stouff, Vincent | 7-6,2-6,1-6 |
| ITF Australia F6 | 2018/09/27 01:00 | Stouff, Vincent v Vuradin, Lucas | 6-3,4-6,6-7 |
| ITF Australia F6 | 2018/09/26 02:40 | Puodziunas, Scott v Stouff, Vincent | 2-6,4-6 |
| ITF Australia F6 | 2018/09/24 02:15 | Stouff, Vincent v Luke, Patrick | 6-4,6-2 |
| ITF Australia F6 | 2018/09/23 03:30 | Jesse Flores v Stouff, Vincent | 1-6,3-6 |
| ITF Australia F5 | 2018/09/20 00:00 | Ryan James Storrie v Stouff, Vincent | 6-4,7-6 |
| ITF Australia F5 | 2018/09/18 00:00 | Mendez, Matthew v Stouff, Vincent | 4-6,3-6 |