Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Eupen | 2023/08/13 13:00 | Marlon Vankan v Marc Majdandzic | 7-5,7-6 |
| ITF M15 Eupen | 2023/08/12 12:15 | Peter Heller v Marc Majdandzic | 5-7,1-6 |
| ITF M15 Eupen | 2023/08/11 16:30 | Luca Wiedenmann v Marc Majdandzic | 4-6,7-5,3-6 |
| ITF M15 Eupen | 2023/08/10 17:00 | Pierre Yves Bailly v Marc Majdandzic | 6-3,4-6,1-6 |
| ITF M15 Eupen | 2023/08/09 12:20 | Marc Majdandzic v Jose Pereira | 4-6,6-1,7-6 |
| Challenger Braunschweig | 2023/07/09 14:15 | Marc Majdandzic v Denis Yevseyev | 3-6,4-6 |
| ITF M15 Kamen | 2023/06/29 08:50 | Tom Gentzsch v Marc Majdandzic | 6-3,4-6,7-6 |
| ITF M15 Kamen | 2023/06/27 09:00 | Marc Majdandzic v Kody Pearson | 6-4,6-3 |
| Challenger Banja Luka | 2023/08/07 09:30 | Juan Pablo Paz v Simon A Ivanov | 6-1,6-2 |
| ITF M25 Bolzano | 2023/07/31 12:50 | Simon A Ivanov v Nikolay Vylegzhanin | 4-6,0-6 |
| Challenger Verona | 2023/07/23 12:35 | Mathias Bourgue v Simon A Ivanov | 6-3,6-3 |
| ITF M15 Sofia | 2023/07/05 08:50 | Antonio Massara v Simon A Ivanov | 6-7,6-2,3-6 |
| ITF M15 Constanta | 2023/06/01 08:00 | Simon A Ivanov v Ignacio Carou | 6-4,6-2 |
| ITF M15 Constanta | 2023/05/30 11:00 | Simon A Ivanov v Kai Lemstra | 6-2,6-2 |
| ITF M15 Pazardzhik | 2023/05/26 07:00 | Simon A Ivanov v Corentin Denolly | 3-6,7-6,2-6 |
| ITF M15 Pazardzhik | 2023/05/25 08:30 | Simon A Ivanov v Luigi Sorrentino | 6-1,6-3 |