Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Moscow | 2019/08/20 09:00 | Savriyan Danilov v Markos Kalovelonis | 6-4,6-1 |
| ITF M15 Moscow | 2019/08/13 13:00 | Maxim Ratniuk v Markos Kalovelonis | 6-1,7-6 |
| ITF - M25 Nonthaburi | 2019/07/30 07:40 | Markos Kalovelonis v Yu Hsiou Hsu | 3-6,2-6 |
| ITF - M25 Nonthaburi | 2019/07/24 02:00 | Markos Kalovelonis v Dusty H. Boyer | 3-6,6-7 |
| ITF - M15 Belgrade | 2019/07/03 14:45 | Matic Spec v Markos Kalovelonis | 6-4,7-5 |
| ITF - M15 Akko | 2019/06/13 07:00 | Markos Kalovelonis v Igor Smilansky | 7-6,3-6,1-6 |
| ITF - M15 Akko | 2019/06/12 08:00 | Markos Kalovelonis v Boris Pokotilov | 7-6,6-4 |
| ITF - M15 Heraklion | 2019/06/01 09:10 | Markos Kalovelonis v Michail Pervolarakis | 4-6,0-6 |
| ITF M25 Jounieh | 2019/09/24 07:00 | Sabit Suntic v Vladimir Filip | 6-7,4-6 |
| ITF - M15 Zlatibor | 2019/09/18 12:45 | Stefan Popovic v Sabit Suntic | 7-6,6-2 |
| ITF - M15 Zlatibor | 2019/09/17 07:00 | Sabit Suntic v Mihailo Radosavljevic | 4-6,2-6 |
| ITF - M15 Novi Sad | 2019/08/12 08:00 | Stevan Popovic v Sabit Suntic | 2-6,4-6 |
| ITF - M15 Novi Sad | 2019/08/06 08:00 | Tomas Liska v Sabit Suntic | 7-5,6-1 |
| ITF - M15 Novi Sad | 2019/08/05 08:00 | Dusan Obradovic v Sabit Suntic | 6-1,6-7,8-10 |
| ITF - M15 Novi Sad | 2019/07/30 09:35 | Sabit Suntic v Aziz Kijametovic | 2-6,3-6 |
| ITF - M15 Novi Sad | 2019/07/29 10:30 | Sabit Suntic v Nemanja Subanovic | 6-3,6-4 |