| 05.09.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Young-Hoon Jeong/Hyun-Joon Kim | 7-5, 6-3 |  | match details | Korea F8 | Arcilla |
| 05.09.16 | 1/2 | Katsuki Nagao/Hiromasa Oku | Cheong-Eui Kim/Sang-Woo Noh | 7-5, 3-6, 10-8 |  | match details |
| 05.09.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Dong-Kyu Lee/Yo-Sub Yoon | 3-6, 6-3, 10-5 |  | match details |
| 05.09.16 | fin | Ji Sung Nam/Min-Kyu Song | Katsuki Nagao/Hiromasa Oku | 6-4, 6-4 |  | match details |
| 29.08.16 | 1er ronda | Jae-Won Choi/Ju-Hae Moon | Katsuki Nagao/Hiromasa Oku | 6-4, 1-6, 10-7 |  | match details | Korea F7 | Arcilla |
| 22.08.16 | 1er ronda | Woong-Sun Jun/Hyun-Woo Nam | Katsuki Nagao/Hiromasa Oku | 7-62, 6-3 |  | match details | Korea F6 | Arcilla |
| 13.06.16 | 1/2 | Katsuki Nagao/Hiromasa Oku | Yuuya Kibi/Takuto Niki | 6-3, 6-3 |  | match details | Japan F8 | Alfombra |
| 13.06.16 | fin | Katsuki Nagao/Hiromasa Oku | Yuichi Ito/Kaito Uesugi | 6-4, 6-2 |  | match details |
| 13.06.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Yuhei Kono/Yutaro Matsuzaki | 4-6, 7-64, 10-4 |  | match details |
| 13.06.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Masakatsu Noguchi/Koichi Sano | 6-4, 6-3 |  | match details |
| 06.06.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Ryota Kishi/Yutaro Matsuzaki | 6-3, 6-2 |  | match details | Japan F7 | Difícil |
| 06.06.16 | 1/4 | Yosuke Watanuki/Yusuke Watanuki | Katsuki Nagao/Hiromasa Oku | 2-6, 6-3, 10-8 |  | match details |
| 30.05.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Tomohiro Masabayashi/Daisuke Sumizawa | 6-1, 7-65 |  | match details | Japan F6 | Arcilla |
| 30.05.16 | fin | Yasutaka Uchiyama/Andrew Whittington | Katsuki Nagao/Hiromasa Oku | 7-61, 6-4 |  | match details |
| 30.05.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Takuto Niki/Issei Okamura | 6-3, 6-2 |  | match details |
| 30.05.16 | 1/2 | Katsuki Nagao/Hiromasa Oku | Yuuya Kibi/Toshihide Matsui | 6-4, 6-1 |  | match details |
| 23.05.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Masakatsu Noguchi/Masaki Sasai | 6-2, 6-2 |  | match details | Guam F1 | Difícil |
| 23.05.16 | 1/2 | Sho Katayama/Yutaro Matsuzaki | Katsuki Nagao/Hiromasa Oku | 6-4, 2-6, 10-8 |  | match details |
| 23.05.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Neeraj Elangovan/Tetsuro Habusawa | 5-7, 6-2, 10-5 |  | match details |
| 09.05.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Muhammet Haylaz/Keisuke Numajiri | 6-3, 6-4 |  | match details | Turkey F19 | Difícil |
| 09.05.16 | 1/2 | Katsuki Nagao/Hiromasa Oku | Sarp Agabigun/Altug Celikbilek | 2-6, 6-3, 10-6 |  | match details |
| 09.05.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Dennis Novak/Thomas Statzberger | 6-4, 6-3 |  | match details |
| 09.05.16 | fin | Mikelis Libietis/Hugo Nys | Katsuki Nagao/Hiromasa Oku | 4-6, 6-2, 10-3 |  | match details |
| 02.05.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Manuel Barros/Emiliano Franco Vecchia | 6-3, 6-0 |  | match details | Turkey F18 | Difícil |
| 02.05.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Dennis Novak/Thomas Statzberger | 6-74, 6-4, 10-7 |  | match details |
| 02.05.16 | 1/2 | Sarp Agabigun/Altug Celikbilek | Katsuki Nagao/Hiromasa Oku | 7-5, 6-3 |  | match details |
| 25.04.16 | 1/2 | Christoph Negritu/Marc Sieber | Katsuki Nagao/Hiromasa Oku | 6-3, 7-5 |  | match details | Turkey F17 | Difícil |
| 25.04.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Daniel Kossek/Maciej Smola | 6-3, 6-1 |  | match details |
| 25.04.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Raphael Baltensperger/Marko Osmakcic | 7-5, 6-0 |  | match details |
| 04.04.16 | 1/2 | Yuichi Ito/Sho Katayama | Katsuki Nagao/Hiromasa Oku | 6-3, 6-2 |  | match details | Japan F5 | Difícil |
| 04.04.16 | 1/4 | Katsuki Nagao/Hiromasa Oku | Ryota Hisamatsu/Kazuya Tamura | 6-2, 6-1 |  | match details |
| 04.04.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Ryota Tanuma/Ching-Mou Yu | 6-4, 7-5 |  | match details |
| 28.03.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Daiki Hirota/Yuta Kawahashi | 6-0, 6-0 |  | match details | Japan F4 | Difícil |
| 28.03.16 | 1/4 | Issei Okamura/Kento Takeuchi | Katsuki Nagao/Hiromasa Oku | 4-6, 6-1, 12-10 |  | match details |
| 21.03.16 | 1er ronda | Katsuki Nagao/Hiromasa Oku | Shuichi Sekiguchi/Karunuday Singh | 1-6, 7-64, 10-7 |  | match details | Japan F3 | Difícil |
| 21.03.16 | 1/4 | Sora Fukuda/Kaichi Uchida | Katsuki Nagao/Hiromasa Oku | 6-76, 7-5, 10-7 |  | match details |
| 14.03.16 | 1er ronda | Xin Gao/Bowen Ouyang | Katsuki Nagao/Hiromasa Oku | 7-5, 6-3 |  | match details | Japan F2 | Difícil |
| 07.03.16 | 1er ronda | Hiroki Kondo/Takuto Niki | Katsuki Nagao/Hiromasa Oku | 3-6, 6-3, 10-8 |  | match details | Japan F1 | Difícil |