Round: 27 Ground: Synthetic outdoor
| ITF Japan F7 | 2016/06/09 02:00 | Rio Noguchi v Shiga, Masato | 3-6,3-6 |
| ITF Japan F7 | 2016/06/06 05:55 | Shiga, Masato v Moritani, Soichiro | 7-5,6-4 |
| ITF Japan F6 | 2016/05/31 05:30 | Shiga, Masato v Kibi, Yuya | 6-7,6-4,0-6 |
| ITF Guam F1 | 2016/05/28 01:35 | Shiga, Masato v Sekiguchi, Shuichi | 4-6,6-7 |
| ITF Guam F1 | 2016/05/27 04:25 | Shiga, Masato v Sasai, Masaki | 6-2,6-1 |
| ITF Guam F1 | 2016/05/25 00:00 | Shiga, Masato v Matsuzaki, Yutaro | 6-2,6-2 |
| ITF Guam F1 | 2016/05/23 01:30 | Shiga, Masato v Lim, Yong-Kyu | 6-3,6-4 |
| ITF China F7 | 2016/05/19 02:00 | Akira Santillan v Shiga, Masato | 7-6,6-2 |
| ITF Japan F7 | 2016/06/09 02:00 | Sano, Koichi v Katayama, Sho | 6-3,2-6,1-6 |
| ITF Japan F7 | 2016/06/07 03:40 | Oku, Hiromasa v Katayama, Sho | 1-6,2-6 |
| ITF Japan F6 | 2016/06/01 01:00 | Katayama, Sho v Yasutaka Uchiyama | 4-6,3-6 |
| ITF Japan F6 | 2016/05/31 01:00 | Katayama, Sho v Nagao, Katsuki | 3-6,6-4,6-3 |
| ITF Guam F1 | 2016/05/27 00:00 | Baughman, Deiton v Katayama, Sho | 6-4,6-4 |
| ITF Guam F1 | 2016/05/25 01:35 | Oh, Seong-Gook v Katayama, Sho | 4-6,1-6 |
| ITF Guam F1 | 2016/05/24 00:00 | Goh, Steven v Katayama, Sho | 0-6,4-6 |
| ITF India F2 | 2016/05/06 04:30 | Katayama, Sho v Sidharth Rawat | 6-2,3-6,3-6 |