Round: 27 Ground: Hardcourt outdoor
| ITF Turkey F18 | 2016/05/08 08:00 | Dennis Novak v Sieber, Marc | 6-2,6-2 |
| ITF Turkey F18 | 2016/05/07 08:00 | Sieber, Marc v Hugo Nys | 1-6,6-3,6-2 |
| ITF Turkey F18 | 2016/05/06 08:00 | Nagao, Katsuki v Sieber, Marc | 3-6,6-4,2-6 |
| 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 |
| ITF Turkey F19 | 2016/05/11 13:00 | Oku, Hiromasa v Statzberger, Thomas | 6-3,6-4 |
| ITF Turkey F18 | 2016/05/04 08:00 | Oku, Hiromasa v Yuksel, Anil | 3-6,2-6 |
| Turkey F17, Singles Qualifying | 2016/04/26 11:20 | Altug Celikbilek v Oku, Hiromasa | 6-4,2-6,7-6 |
| ITF Japan F5 | 2016/04/08 01:00 | Oku, Hiromasa v Kibi, Yuya | 2-6,4-6 |
| ITF Japan F5 | 2016/04/05 07:45 | Oku, Hiromasa v Nagao, Katsuki | 7-6,5-7,6-1 |
| ITF Japan F4 | 2016/03/30 03:25 | Shiga, Masato v Oku, Hiromasa | 6-4,6-3 |
| ITF Japan F3 | 2016/03/20 01:00 | Oku, Hiromasa v Kikuchi, Gengo | 2-6,1-6 |
| ITF Japan F3 | 2016/03/19 03:45 | Oku, Hiromasa v Ko Suzuki | 5-7,7-6,7-5 |