14.10.19 | 1/4 | Issei Okamura/Ryota Tanuma | Yuta Kawahashi/Soichiro Moritani | 5-7, 6-4, 10-7 | | match details | M15 Changwon | Hard |
14.10.19 | 1/2 | Hong Chung/Jea Moon Lee | Issei Okamura/Ryota Tanuma | 6-3, 6-2 | | match details |
14.10.19 | 1st round | Issei Okamura/Ryota Tanuma | Kousuke Ogura/Ko Suzuki | 3-6, 6-3, 10-8 | | match details |
26.08.19 | 1st round | Issei Okamura/Ryota Tanuma | Sanchai Ratiwatana/Sonchat Ratiwatana | 7-5, 6-3 | | match details | M15 Hua | Hard |
26.08.19 | 1/4 | Seong Chan Hong/Sanhui Shin | Issei Okamura/Ryota Tanuma | 6-4, 7-5 | | match details |
04.03.19 | 1st round | Adam Taylor/Jason Taylor | Issei Okamura/Ryota Tanuma | 7-62, 7-5 | | match details | M25 Mildura | Grass |
25.02.19 | 1st round | Issei Okamura/Ryota Tanuma | Charlie Emhardt/Anderson Reed | 7-611, 7-62 | | match details | M25 Albury | Grass |
25.02.19 | 1/4 | Michael Look/Matthew Christopher Romios | Issei Okamura/Ryota Tanuma | 6-3, 7-64 | | match details |
07.05.18 | 1/4 | Chun Hun Wong/Pak Long Yeung | Issei Okamura/Ryota Tanuma | 6-1, 6-2 | | match details | Vietnam F2 | Hard |
07.05.18 | 1st round | Issei Okamura/Ryota Tanuma | Matthew Christopher Romios/Nitin Kumar Sinha | 6-74, 7-5, 10-6 | | match details |
20.03.17 | 1st round | Shintaro Imai/Kaito Uesugi | Issei Okamura/Ryota Tanuma | 7-64, 6-3 | | match details | Japan F3 | Hard |
29.08.16 | 1st round | Yunseong Chung/Seong Chan Hong | Issei Okamura/Ryota Tanuma | 6-3, 6-3 | | match details | Thailand F2 | Hard |
22.08.16 | 1/4 | Sanchai Ratiwatana/Sonchat Ratiwatana | Issei Okamura/Ryota Tanuma | 7-5, 6-3 | | match details | Thailand F1 | Hard |
22.08.16 | 1st round | Issei Okamura/Ryota Tanuma | Natthasith Kunsuwan/Nutdanai Sincharoenwattana | 6-4, 6-0 | | match details |
18.07.16 | 1st round | Issei Okamura/Ryota Tanuma | Mukund Sasikumar/Ranjeet Virali-Murugesan | 6-4, 5-7, 10-5 | | match details | China F13 | Clay |
18.07.16 | 1/4 | Thomas Fancutt/Mitchell William Robins | Issei Okamura/Ryota Tanuma | 6-3, 4-6, 10-6 | | match details |
16.03.15 | 1st round | Jarryd Chaplin/Ben Mclachlan | Issei Okamura/Ryota Tanuma | 6-2, 6-1 | | match details | Japan F2 | Hard |