Ground: Clay
| ITF Romania F9 | 2015/07/13 10:15 | Ontica, Cosmin v Schmid, Lorenzo | 6-1,6-2 |
| ITF Romania F9 | 2015/07/12 09:00 | Ontica, Cosmin v Moyna, Aland | 6-2,6-1 |
| ITF Romania F8 Qual | 2015/07/04 10:00 | Giorgio Ricca v Ontica, Cosmin | 7-6,6-3 |
| ITF Bulgaria F1 | 2015/06/10 07:00 | Ontica, Cosmin v Grozdanov, Tihomir | 0-6,2-6 |
| ITF Romania F4 | 2015/05/25 07:00 | Craciun, Teodor-Dacian v Ontica, Cosmin | 6-0,6-1 |
| ITF Romania F3 | 2015/05/20 07:00 | Ontica, Cosmin v Lazov, Alexander | 3-6,0-6 |
| ITF Romania F3 | 2015/05/19 07:00 | Ontica, Cosmin v Borza, Bogdan | 3-6,7-6,7-5 |
| ITF Romania F3 | 2015/05/18 09:00 | Voinea, Christian v Ontica, Cosmin | 4-6,5-7 |
| ITF Romania F8 | 2015/07/09 07:00 | Grigelis, Laurynas v Fortuna, Claudio | 4-6,3-6 |
| ITF Romania F8 | 2015/07/08 06:30 | Grigelis, Laurynas v Grandon Diaz, Cristobal | 7-5,6-1 |
| ITF Romania F8 | 2015/07/07 06:30 | Grigelis, Laurynas v Frunza, Nicolae | 6-4,7-5 |
| ITF Romania F7 | 2015/07/04 08:30 | Mariano Kestelboim v Grigelis, Laurynas | 4-6,3-6 |
| ITF Romania F7 | 2015/07/03 08:00 | Grigelis, Laurynas v Miljan Zekic | 7-5,6-1 |
| ITF Romania F7 | 2015/07/02 08:00 | Dubarenco, Maxim v Grigelis, Laurynas | 4-6,6-3,3-6 |
| ITF Romania F7 | 2015/07/01 07:00 | Butler, Samm v Grigelis, Laurynas | 6-7,2-6 |
| ITF Romania F7 | 2015/06/30 09:10 | Cornea, Vlad Victor v Grigelis, Laurynas | 6-3,3-6,0-6 |