Round: 44 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2019/12/01 09:00 | Stuart Parker v Stefan Cizelj-Zivkovic | 6-1,6-1 |
| ITF M15 Heraklion | 2019/11/24 10:30 | Christos Keisidis v Stefan Cizelj-Zivkovic | 6-4,6-2 |
| ITF M15 Sharm El Sheikh | 2019/11/18 08:00 | Luca Potenza v Stefan Cizelj-Zivkovic | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2019/11/17 08:00 | Preston Connor v Stefan Cizelj-Zivkovic | 0-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/11/10 12:00 | Nikolas Lahky v Stefan Cizelj-Zivkovic | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2019/11/03 08:00 | Stefan Cizelj-Zivkovic v Shamirul S Mohd Adam Das | 2-6,3-6 |
| ITF M15 Sharm El Sheikh | 2019/10/27 10:00 | Tim Riedel v Stefan Cizelj-Zivkovic | 6-4,6-4 |
| ITF M15 Tabarka | 2019/10/13 08:30 | Boruch Skierkier v Stefan Cizelj-Zivkovic | 6-1,6-0 |
| ITF M25 Prijedor | 2019/05/07 10:00 | Besir Durguti v Andrej Duric | 6-2,6-1 |
| ITF Turkey F38 | 2018/11/25 07:00 | Hristo Valeov v Andrej Duric | 6-1,6-1 |
| Challenger Banja Luka | 2018/09/08 11:50 | Marko Vujic v Andrej Duric | 6-0,6-1 |
| Challenger Banja Luka Qual | 2017/09/09 09:30 | Ivan Sabanov v Andrej Duric | 6-0,6-1 |