Stadium: Shirley Lai Ct Round: 26 Ground: Hardcourt outdoor
| ITF Japan F8 | 2018/06/13 04:40 | Issei Okamura v Rio Noguchi | 4-6,3-6 |
| ITF Vietnam F1 | 2018/04/30 04:45 | Issei Okamura v Rio Noguchi | 5-7,5-7 |
| ITF Vietnam F3 | 2017/11/24 03:00 | Rio Noguchi v Issei Okamura | 2-6,2-6 |
| Challenger Concepcion | 2022/03/14 13:30 | Facundo Juarez v Rio Noguchi | 6-2,6-4 |
| Challenger Concepcion | 2022/03/13 17:30 | Jordan Iturra v Rio Noguchi | 2-6,0-6 |
| Challenger Santiago | 2022/03/07 13:00 | Evan Furness v Rio Noguchi | 6-4,6-3 |
| Challenger Santiago | 2022/03/06 13:00 | Bart Stevens v Rio Noguchi | 6-7,4-6 |
| Challenger Gran Canaria | 2022/02/27 16:40 | Maxime Chazal v Rio Noguchi | 6-3,6-4 |
| Challenger Bengaluru | 2022/02/14 07:20 | Rio Noguchi v Nitin Kumar Sinha | 4-6,7-6,1-6 |
| Challenger Bengaluru Qual | 2022/02/13 07:05 | Rio Noguchi v Suraj R Prabodh | 6-1,7-6 |
| Challenger Bengaluru | 2022/02/08 04:30 | Borna Gojo v Rio Noguchi | 3-6,6-1,6-2 |
| 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 |
| ITF M15 Sharm El Sheikh | 2021/04/08 07:30 | Nicolas Moreno De Alboran v Issei Okamura | 7-5,6-1 |
| ITF M15 Sharm El Sheikh | 2021/04/07 12:50 | Alexandros Skorilas v Issei Okamura | 5-7,2-6 |