| 14.10.19 | Semifinală | Hong Chung/Jea Moon Lee | Issei Okamura/Ryota Tanuma | 6-3, 6-2 |  | detaliu meci | M15 Changwon | Hard |
| 14.10.19 | 1-a rundă | Issei Okamura/Ryota Tanuma | Kosuke Ogura/Ko Suzuki | 3-6, 6-3, 10-8 |  | detaliu meci |
| 14.10.19 | Sfert de finală | Issei Okamura/Ryota Tanuma | Yuta Kawahashi/Soichiro Moritani | 5-7, 6-4, 10-7 |  | detaliu meci |
| 26.08.19 | 1-a rundă | Issei Okamura/Ryota Tanuma | Sanchai Ratiwatana/Sonchat Ratiwatana | 7-5, 6-3 |  | detaliu meci | M15 Hua | Hard |
| 26.08.19 | Sfert de finală | Seongchan Hong/Sanhui Shin | Issei Okamura/Ryota Tanuma | 6-4, 7-5 |  | detaliu meci |
| 07.05.18 | 1-a rundă | Issei Okamura/Ryota Tanuma | Matthew Christopher Romios/Nitin Kumar Sinha | 6-74, 7-5, 10-6 |  | detaliu meci | Vietnam F2 | Hard |
| 07.05.18 | Sfert de finală | Chun Hun Wong/Pak Long Yeung | Issei Okamura/Ryota Tanuma | 6-1, 6-2 |  | detaliu meci |
| 20.03.17 | 1-a rundă | Shintaro Imai/Kaito Uesugi | Issei Okamura/Ryota Tanuma | 7-64, 6-3 |  | detaliu meci | Japan F3 | Hard |
| 29.08.16 | 1-a rundă | Yunseong Chung/Seongchan Hong | Issei Okamura/Ryota Tanuma | 6-3, 6-3 |  | detaliu meci | Thailand F2 | Hard |
| 22.08.16 | Sfert de finală | Sanchai Ratiwatana/Sonchat Ratiwatana | Issei Okamura/Ryota Tanuma | 7-5, 6-3 |  | detaliu meci | Thailand F1 | Hard |
| 22.08.16 | 1-a rundă | Issei Okamura/Ryota Tanuma | Natthasith Kunsuwan/Nutdanai Sincharoenwattana | 6-4, 6-0 |  | detaliu meci |
| 16.03.15 | 1-a rundă | Jarryd Chaplin/Ben Mclachlan | Issei Okamura/Ryota Tanuma | 6-2, 6-1 |  | detaliu meci | Japan F2 | Hard |