09.09.22 | 1/4 | Yuhei Kono/Yusuke Kusuhara | Issei Okamura/Kento Takeuchi | 7-5, 6-3 |  | Matcha detaljer | M25 Sapporo | Svårt |
08.09.22 | 1: a omgången | Issei Okamura/Kento Takeuchi | Takuto Niki/Takeru Yuzuki | 6-75, 6-1, 10-8 |  | Matcha detaljer |
20.08.22 | fin | Parikshit Somani/Manish Sureshkumar | Issei Okamura/Kento Takeuchi | 7-63, 7-64 |  | Matcha detaljer | M15 Jakarta | Svårt |
19.08.22 | 1/2 | Issei Okamura/Kento Takeuchi | Nathan Anthony Barki/Christopher Rungkat | 6-1, 3-6, 10-1 |  | Matcha detaljer |
18.08.22 | 1/4 | Issei Okamura/Kento Takeuchi | Francis Casey Alcantara/Yuki Mochizuki | 7-5, 6-2 |  | Matcha detaljer |
16.08.22 | 1: a omgången | Issei Okamura/Kento Takeuchi | Moerani Bouzige/Tai Sach | 6-1, 6-2 |  | Matcha detaljer |
10.08.22 | 1: a omgången | Francis Casey Alcantara/Yuki Mochizuki | Issei Okamura/Kento Takeuchi | 6-3, 6-4 |  | Matcha detaljer | M15 Jakarta | Svårt |
25.03.19 | 1: a omgången | Shunrou Takeshima/Jumpei Yamasaki | Issei Okamura/Kento Takeuchi | 6-2, 6-1 |  | Matcha detaljer | M15 Tsukuba | Svårt |
09.04.18 | 1: a omgången | Shinta Fujii/Makoto Ochi | Issei Okamura/Kento Takeuchi | 7-61, 7-64 |  | Matcha detaljer | Japan F6 | Svårt |
24.07.17 | 1: a omgången | Liang-Chi Huang/Aoran Wang | Issei Okamura/Kento Takeuchi | 6-4, 7-63 |  | Matcha detaljer | China F14 | Svårt |
05.06.17 | 1: a omgången | Issei Okamura/Kento Takeuchi | Masaya Kobayashi/Yuki Mochizuki | 6-4, 4-6, 10-7 |  | Matcha detaljer | Japan F7 | Svårt |
05.06.17 | 1/4 | Gengo Kikuchi/Shunrou Takeshima | Issei Okamura/Kento Takeuchi | 6-4, 7-64 |  | Matcha detaljer |
29.05.17 | 1: a omgången | Yosuke Watanuki/Yusuke Watanuki | Issei Okamura/Kento Takeuchi | 6-4, 6-3 |  | Matcha detaljer | Japan F6 | Lera |
08.05.17 | 1: a omgången | Issei Okamura/Kento Takeuchi | Yan Bai/Su Hao Zhong | 6-3, 6-3 |  | Matcha detaljer | China F6 | Svårt |
08.05.17 | 1/4 | Siyu Liu/Chuhan Wang | Issei Okamura/Kento Takeuchi | 6-72, 6-4, 10-8 |  | Matcha detaljer |
05.12.16 | 1: a omgången | Issei Okamura/Kento Takeuchi | Iswandaru Kusumo Putro/Wisnu Adi Nugroho | 6-3, 6-4 |  | Matcha detaljer | Indonesia F5 | Svårt |
05.12.16 | 1/4 | Issei Okamura/Kento Takeuchi | Roy Hobbs/Cheong-Eui Kim | 6-2, 6-3 |  | Matcha detaljer |
05.12.16 | 1/2 | Issei Okamura/Kento Takeuchi | Justin Barki/Christopher Rungkat | 7-62, 6-73, 10-6 |  | Matcha detaljer |
05.12.16 | fin | Yunseong Chung/Shintaro Imai | Issei Okamura/Kento Takeuchi | 6-2, 3-6, 10-6 |  | Matcha detaljer |
11.04.16 | 1: a omgången | Jeson Patrombon/Aoran Wang | Issei Okamura/Kento Takeuchi | 6-2, 6-3 |  | Matcha detaljer | China F5 | Svårt |
04.04.16 | 1/2 | Shintaro Imai/Takuto Niki | Issei Okamura/Kento Takeuchi | 6-3, 6-4 |  | Matcha detaljer | Japan F5 | Svårt |
04.04.16 | 1: a omgången | Issei Okamura/Kento Takeuchi | Kazuma Kawachi/Ko Suzuki | 6-3, 6-3 |  | Matcha detaljer |
04.04.16 | 1/4 | Issei Okamura/Kento Takeuchi | Yuuya Kibi/Ben Mclachlan | 7-5, 2-6, 10-7 |  | Matcha detaljer |
28.03.16 | 1/4 | Issei Okamura/Kento Takeuchi | Katsuki Nagao/Hiromasa Oku | 4-6, 6-1, 12-10 |  | Matcha detaljer | Japan F4 | Svårt |
28.03.16 | 1/2 | Ben Mclachlan/Finn Tearney | Issei Okamura/Kento Takeuchi | 5-7, 6-4, 10-3 |  | Matcha detaljer |
28.03.16 | 1: a omgången | Issei Okamura/Kento Takeuchi | Kouki Okamoto/Sou Takahashi | 6-4, 6-4 |  | Matcha detaljer |
21.03.16 | 1: a omgången | Shintaro Imai/Takuto Niki | Issei Okamura/Kento Takeuchi | 6-1, 6-74, 10-3 |  | Matcha detaljer | Japan F3 | Svårt |
14.03.16 | 1: a omgången | Issei Okamura/Kento Takeuchi | Soichiro Moritani/Makoto Ochi | 6-4, 6-4 |  | Matcha detaljer | Japan F2 | Svårt |
14.03.16 | fin | Yunseong Chung/Soon-Woo Kwon | Issei Okamura/Kento Takeuchi | 2-6, 6-2, 10-3 |  | Matcha detaljer |
14.03.16 | 1/4 | Issei Okamura/Kento Takeuchi | Ken Onishi/Ryota Tanuma | 6-3, 6-3 |  | Matcha detaljer |
14.03.16 | 1/2 | Issei Okamura/Kento Takeuchi | Yuhei Kono/Yutaro Matsuzaki | 6-3, 2-6, 10-4 |  | Matcha detaljer |
07.03.16 | 1: a omgången | Shuichi Sekiguchi/Karunuday Singh | Issei Okamura/Kento Takeuchi | 7-5, 6-4 |  | Matcha detaljer | Japan F1 | Svårt |
30.11.15 | 1/4 | Xin Gao/Bowen Ouyang | Issei Okamura/Kento Takeuchi | 6-3, 3-6, 11-9 |  | Matcha detaljer | Thailand F9 | Svårt |
30.11.15 | 1: a omgången | Issei Okamura/Kento Takeuchi | Patcharapol Kawin/Akanit Pumjit | 6-0, 6-4 |  | Matcha detaljer |
12.10.15 | 1/4 | Soichiro Moritani/Masato Shiga | Issei Okamura/Kento Takeuchi | 7-64, 7-62 |  | Matcha detaljer | Philippines F2 | Lera |
12.10.15 | 1: a omgången | Issei Okamura/Kento Takeuchi | Ren Nakamura/Shu Saito | 6-2, 6-4 |  | Matcha detaljer |
05.10.15 | fin | Harry Bourchier/Enrique Lopez-Perez | Issei Okamura/Kento Takeuchi | 6-4, 6-3 |  | Matcha detaljer | Philippines F1 | Lera |
05.10.15 | 1/2 | Issei Okamura/Kento Takeuchi | Francis Casey Alcantara/Johnny Arcilla | 7-62, 7-5 |  | Matcha detaljer |
05.10.15 | 1: a omgången | Issei Okamura/Kento Takeuchi | Vicente Elberto Anasta/Leander Lazaro | 6-2, 6-2 |  | Matcha detaljer |
05.10.15 | 1/4 | Issei Okamura/Kento Takeuchi | Jui-Chen Hung/Wei-De Lin | 6-4, 6-4 |  | Matcha detaljer |