Stadium: Center Court Round: 44 Ground: Clay
| ITF - M15 Bucarest | 2020/09/07 07:00 | Ontica, Cosmin v Cezar Cretu | 6-4,6-7,4-10 |
| Varna, Singles M-ITF-BUL-04A | 2019/09/12 08:40 | Ontica, Cosmin v Kranic, Karlo | 5-7,1-6 |
| Varna, Singles M-ITF-BUL-04A | 2019/09/11 07:00 | Vodavoz, Nir v Ontica, Cosmin | 3-6,2-6 |
| Varna, Singles M-ITF-BUL-04A | 2019/09/09 12:00 | Ontica, Cosmin v Valeov, Hristo | 6-4,6-2 |
| ITF M15 Curtea de Arges | 2019/08/19 11:00 | Ontica, Cosmin v Barbu, Adrian | 6-2,2-6,10-12 |
| ITF M25 Pitesti | 2019/08/12 08:30 | Bodnariuk, Alexandru Cristian v Ontica, Cosmin | 6-4,6-1 |
| Chitila, Singles M-ITF-ROU-06A | 2019/07/29 12:00 | Tamar, Gilad v Ontica, Cosmin | 0-6,4-6 |
| Plovdiv, Singles Qualifying M-ITF-BUL-03A | 2019/06/03 10:00 | Ianakiev, Milen v Ontica, Cosmin | 1-6,6-4,10-6 |