Round: 62 Ground: Clay
| ITF Romania F4 | 2017/05/15 07:00 | Gianni Ross v Cosmin Ontica | 6-3,6-4 |
| ITF Turkey F17 | 2017/04/29 07:00 | Cosmin Ontica v Alexander Jhun | 1-6,4-6 |
| ITF Turkey F16 | 2017/04/23 07:00 | Cosmin Ontica v Victor Nunez | 1-6,5-7 |
| ITF Greece F3 | 2017/03/18 09:30 | Peter Bothwell v Cosmin Ontica | 4-6,6-3,6-3 |
| ITF Greece F2 Qual | 2017/03/14 07:30 | Petar Conkic v Cosmin Ontica | 6-2,6-1 |
| ITF Turkey F5 | 2017/02/05 07:00 | Cosmin Ontica v Dusty H. Boyer | 1-6,3-6 |
| ITF Turkey F5 | 2017/02/04 06:30 | Mousheg Hovhannisyan v Cosmin Ontica | 2-6,2-6 |
| ITF Turkey F4 | 2017/01/30 07:00 | Pavel Krainik v Cosmin Ontica | 5-7,6-1,7-5 |
| ITF Romania F4 | 2017/06/19 10:00 | George Iulian Dina v Daniel Cozma | 0-6,4-6 |