Stadium: COURT VIKTOR TROICKI Round: 27 Ground: Clay
| Challenger Banja Luka | 2023/08/07 16:00 | Miljan Zekic v Stefan Popovic | 6-3,6-0 |
| Challenger Banja Luka | 2023/08/07 12:20 | Stefan Popovic v Neil Oberleitner | 6-4,6-2 |
| ITF M15 Novi Sad | 2023/08/06 07:30 | Stefan Popovic v Matej Dodig | 6-4,2-6,3-6 |
| ITF M15 Novi Sad | 2023/08/05 08:00 | Valerio Aboian v Stefan Popovic | 6-7,4-6 |
| ITF M15 Novi Sad | 2023/08/04 10:15 | Florent Bax v Stefan Popovic | 6-7,6-2,5-7 |
| ITF M15 Novi Sad | 2023/08/03 09:45 | Miha Vetrih v Stefan Popovic | 3-6,6-4,3-6 |
| ITF M15 Novi Sad | 2023/08/02 13:50 | Szymon Kielan v Stefan Popovic | 2-6,1-6 |
| ITF M15 Metzingen | 2023/07/28 13:50 | Stefan Popovic v Nicola Kuhn | 4-6,4-6 |
| ITF M25 Santander | 2023/08/22 07:55 | Alejo Sanchez Quilez v Svyatoslav Gulin | 6-1,2-6,4-6 |
| ITF M15 Kottingbrunn | 2023/08/17 08:00 | Svyatoslav Gulin v Joel Schwaerzler | 1-6,1-6 |
| ITF M15 Kottingbrunn | 2023/08/15 08:00 | Sebastian Prechtel v Svyatoslav Gulin | 3-6,6-7 |
| ITF M15 Uslar | 2023/07/18 10:00 | Sebastian Prechtel v Svyatoslav Gulin | 6-1,6-3 |
| ITF M25 Kassel | 2023/07/14 14:10 | Svyatoslav Gulin v Andrew Paulson | 2-6,2-6 |
| ITF M25 Kassel | 2023/07/13 11:00 | Aleksandre Metreveli v Svyatoslav Gulin | 1-6,3-6 |
| ITF M25 Kassel | 2023/07/12 12:15 | Svyatoslav Gulin v Max Wiskandt | 6-4,6-4 |
| ITF M15 Kamen | 2023/07/02 08:55 | Svyatoslav Gulin v Hynek Barton | 2-6,6-4,6-2 |