Stadium: Court 3 Round: 62 Ground: Clay
| ITF Serbia F1 Qual | 2018/08/04 07:00 | Petrovic, Stefan v Gunduboina, Nitin | 7-5,6-3 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Mark Whitehouse v Petrovic, Stefan | 6-2,7-5 |
| ITF Portugal F11 Qual | 2018/07/02 11:00 | Sedeno Nieto, Alejandro v Petrovic, Stefan | 3-6,6-7 |
| ITF Portugal F11 Qual | 2018/07/01 16:00 | Thursfield, Harry v Petrovic, Stefan | 6-7,4-6 |
| ITF Portugal F10 | 2018/06/25 12:30 | Petrovic, Stefan v Rosenzweig, Nicolas | 3-6,2-6 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/19 09:30 | Petrovic, Stefan v Andrea Picchione | 3-6,1-6 |
| Tunisia F17, Singles Qualifying | 2018/05/03 11:05 | Petrovic, Stefan v Tchoutakian, Maxime | 2-6,1-6 |
| Tunisia F17, Singles Qualifying | 2018/05/02 11:10 | Petrovic, Stefan v Fisher, Mikar | 6-2,6-4 |
| ITF Serbia F1 Qual | 2018/08/04 07:00 | Skadarka, Stefan v Kapiris, Stamatis | 6-0,2-6,6-3 |
| ITF Austria F4 Qual | 2018/07/21 10:00 | Stepanek, Antonin v Skadarka, Stefan | 7-6,6-0 |
| ITF Austria F4 Qual | 2018/07/21 07:30 | Skadarka, Stefan v Schager, Alexander | 6-2,6-4 |
| ITF Austria F3 | 2018/07/14 07:15 | Skadarka, Stefan v Stepanek, Antonin | 2-6,0-6 |
| ITF Singapore F1 | 2018/05/15 02:00 | Skadarka, Stefan v Nolan, Daniel | 1-6,1-6 |
| ITF Vietnam F2 | 2018/05/06 04:00 | Nam, Ji Sung v Skadarka, Stefan | 6-0,6-4 |
| ITF Vietnam F2 | 2018/05/05 07:00 | Skadarka, Stefan v Seol, Jae-Min | 6-4,6-1 |
| ITF Vietnam F1 | 2018/04/29 05:30 | Kerdlaphee, Kittirat v Skadarka, Stefan | 7-5,7-6 |