Estádio: Court 2 Round: 14 Ground: Clay
| Challenger - Perúgia | 2023/06/11 12:45 | Renzo Olivo v Robert Strombachs | 6-4,6-1 |
| ITF - M25 Córdova | 2023/06/09 08:00 | Robert Strombachs v Georgii Kravchenko | 5-7,0-6 |
| Challenger - Troisdorf | 2023/06/02 16:10 | Pavel Kotov v Robert Strombachs | 2-6,6-3,6-4 |
| Challenger - Troisdorf | 2023/06/01 10:30 | Hernan Casanova v Robert Strombachs | 4-6,0-6 |
| Challenger - Troisdorf | 2023/05/30 08:00 | Robert Strombachs v Jozef Kovalik | 7-5,7-6 |
| Challenger - Troisdorf | 2023/05/29 08:30 | Sumit Nagal v Robert Strombachs | 1-6,6-7 |
| Challenger - Troisdorf | 2023/05/28 08:30 | Robert Strombachs v Maxime Janvier | 6-3,6-4 |
| ITF - M25 Most | 2023/05/25 13:25 | Robert Strombachs v Emilien Voisin | 6-7,6-7 |
| ITF - M25 Kuršumlijska Banja | 2023/06/11 10:05 | Sebastian Gima v Alexander Zgirovsky | 4-6,3-6 |
| ITF - M25 Kuršumlijska Banja | 2023/06/10 08:00 | Sebastian Gima v Luka Pavlovic | 3-6,6-3,6-2 |
| ITF - M25 Kuršumlijska Banja | 2023/06/09 12:05 | Dmitry Popko v Sebastian Gima | 2-6,6-4,4-6 |
| ITF - M25 Kuršumlijska Banja | 2023/06/08 11:05 | Sebastian Gima v Gonzalo Villanueva | 2-6,6-4,6-1 |
| ITF - M25 Kuršumlijska Banja | 2023/06/07 07:00 | Romeo Hadzimehmedovic v Sebastian Gima | 0-6,2-6 |
| ITF - M15 Constanța | 2023/06/03 07:55 | Sebastian Gima v Florent Bax | 3-6,7-6,0-6 |
| ITF - M15 Constanța | 2023/06/02 08:00 | Petr Nesterov v Sebastian Gima | 4-6,2-6 |
| ITF - M15 Constanța | 2023/06/01 10:10 | Calin Manda v Sebastian Gima | 6-3,2-6,4-6 |