Stadium: Centre Round: 45
| ITF Austria F5 Qual | 2018/07/30 12:00 | Leuch, Vital Flurin v Ambrozic, David Lucas | 6-1,6-0 |
| ITF Austria F5 Qual | 2018/07/29 10:30 | Filippo Giovannini v Ambrozic, David Lucas | 2-6,6-4,4-6 |
| ITF Austria F5 Qual | 2018/07/28 10:00 | Matic, Luka v Ambrozic, David Lucas | 6-2,6-7,0-6 |
| ITF Belgium F4 | 2018/07/14 12:00 | Simon Beaupain v Ambrozic, David Lucas | 6-1,6-4 |
| ITF Belgium F4 | 2018/07/14 08:30 | Borms, Stefan v Ambrozic, David Lucas | 6-7,0-6 |
| ITF Greece F10 | 2017/11/19 08:00 | Stephanos Schinas v Ambrozic, David Lucas | 6-1,7-6 |
| ITF Greece F9 Qual | 2017/11/11 08:30 | Russo, Cristiano v Ambrozic, David Lucas | 6-2,6-0 |
| Manerbio, Italie, Qualifications | 2017/08/19 09:45 | Di Nicola, Gianluca v Ambrozic, David Lucas | 6-0,6-0 |
| ITF Morocco F3 | 2018/07/31 09:00 | Lipovsek Puches, Tomas v Capalbo, Franco | 1-6,6-1,2-6 |
| ITF Morocco F2 | 2018/07/25 10:00 | Lipovsek Puches, Tomas v Krivokuca, Neven | 3-6,2-6 |
| ITF Morocco F2 | 2018/07/23 10:00 | Lipovsek Puches, Tomas v Martinez Sarrasague, Felipe | 6-4,3-6,7-5 |
| ITF Morocco F1 | 2018/07/20 10:30 | Lipovsek Puches, Tomas v Juan Pablo Paz | 0-6,0-6 |
| ITF Morocco F1 | 2018/07/19 11:00 | Lipovsek Puches, Tomas v Nikolas Sanchez Izquierdo | 7-5,3-6,6-0 |
| ITF Morocco F1 | 2018/07/18 10:00 | Lipovsek Puches, Tomas v Ahouda, Amine | 7-6,6-1 |
| ITF Morocco F1 | 2018/07/17 15:30 | Lipovsek Puches, Tomas v Fermin Tenti | 6-1,6-3 |
| ITF France F12 | 2018/07/06 09:55 | Lipovsek Puches, Tomas v Cornut-Chauvinc, Antoine | 3-6,3-6 |