Round: 27 Ground: Hardcourt outdoor
| Turkey F17, Singles Qualifying | 2016/04/26 11:20 | Nagao, Katsuki v Sieber, Marc | 2-6,1-6 |
| ITF Turkey F18 | 2016/05/03 11:50 | Niesten, Miliaan v Nagao, Katsuki | 4-6,3-6 |
| Turkey F17, Singles Qualifying | 2016/04/26 11:20 | Nagao, Katsuki v Sieber, Marc | 2-6,1-6 |
| ITF Japan F5 | 2016/04/05 07:45 | Oku, Hiromasa v Nagao, Katsuki | 7-6,5-7,6-1 |
| ITF Japan F4 | 2016/03/28 01:00 | Nagao, Katsuki v Sanhui Shin | 1-6,1-6 |
| ITF Japan F4 | 2016/03/27 01:00 | Nagao, Katsuki v Osafune, Masaki | 6-1,6-2 |
| ITF Japan F3 | 2016/03/20 01:00 | Ito, Yuya v Nagao, Katsuki | 6-3,6-4 |
| ITF Japan F3 | 2016/03/19 03:45 | Kishi, Ryota v Nagao, Katsuki | 1-6,5-7 |
| ITF Japan F2 | 2016/03/15 01:00 | Nagao, Katsuki v Kondo, Hiroki | 6-7,0-6 |
| ITF Turkey F18 | 2016/05/05 09:30 | Numajiri, Keisuke v Sieber, Marc | 0-6,2-6 |
| Turkey F17, Singles Qualifying | 2016/05/01 11:00 | Sieber, Marc v Heyman, Christopher | 6-3,6-0 |
| Turkey F17, Singles Qualifying | 2016/04/30 11:00 | Kishi, Ryota v Sieber, Marc | 0-6,5-7 |
| Turkey F17, Singles Qualifying | 2016/04/29 11:00 | Boutillier, Remi v Sieber, Marc | 6-7,1-6 |
| Turkey F17, Singles Qualifying | 2016/04/28 08:00 | Issei Okamura v Sieber, Marc | 7-5,2-6,0-6 |
| Turkey F17, Singles Qualifying | 2016/04/26 11:20 | Nagao, Katsuki v Sieber, Marc | 2-6,1-6 |
| Turkey F15, Singles Qualifying | 2016/04/17 09:00 | Sieber, Marc v Cem Ilkel | 2-6,6-4,6-4 |
| Turkey F15, Singles Qualifying | 2016/04/15 08:00 | David Pichler v Sieber, Marc | 4-6,1-6 |