Stadium: Court 8 Round: 26 Ground: Clay
| ITF China F6 | 2017/05/10 06:05 | Dayne Kelly v Issei Okamura | 6-4,6-3 |
| ITF Australia F10 | 2015/11/18 23:00 | Dayne Kelly v Issei Okamura | 6-4,6-0 |
| ITF M25 Canberra | 2022/03/30 04:00 | Dayne Kelly v Ko Suzuki | 6-3,6-3 |
| ITF M25 Canberra | 2022/03/25 01:45 | James McCabe v Dayne Kelly | 3-6,7-6,7-5 |
| ITF M25 Canberra | 2022/03/23 23:00 | Matthew Romios v Dayne Kelly | 3-6,3-6 |
| ITF M25 Canberra | 2022/03/22 22:55 | Philip Sekulic v Dayne Kelly | 7-6,2-3 |
| ITF M25 Bendigo | 2022/03/09 01:00 | Dayne Kelly v Mitchell Harper | 2-6,6-7 |
| ITF M25 Bendigo | 2022/03/02 01:50 | Ryota Tanuma v Dayne Kelly | 7-6,2-6,6-3 |
| ITF M25 Canberra | 2022/02/17 03:05 | Dayne Kelly v Rubin Statham | 6-7,6-1,6-7 |
| ITF M25 Canberra | 2022/02/16 02:30 | Dayne Kelly v Simon Beaupain | 6-4,7-5 |
| ITF M25 Canberra | 2022/03/29 00:40 | Kento Takeuchi v Issei Okamura | 3-6,6-4,4-6 |
| ITF M25 Canberra | 2022/03/22 03:05 | Kento Takeuchi v Issei Okamura | 5-7,6-2,6-2 |
| ITF M15 Telavi | 2021/08/03 07:45 | Issei Okamura v Aleksandre Bakshi | 6-7,3-6 |
| ITF M25 Telavi | 2021/07/27 09:05 | Zura Tkemaladze v Issei Okamura | 7-6,6-3 |
| ITF M25 Tulsa | 2021/06/14 18:00 | Axel Nefve v Issei Okamura | 6-3,6-2 |
| ITF M25 Santo Domingo | 2021/06/07 18:00 | Issei Okamura v Gabriel Evans | 2-6,6-4,8-10 |
| ITF M25 Santo Domingo | 2021/06/02 13:25 | Jose Olivares v Issei Okamura | 6-3,6-2 |
| ITF M25 Santo Domingo | 2021/06/01 13:00 | Issei Okamura v Ronan Jachuck | 3-6,7-5,10-7 |