Estadio: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF Kazajstán F6 | 2015/10/14 04:30 | Dostanbek Tashbulatov v Markos Kalovelonis | 0-6,1-6 |
| ITF M25 Pretoria | 2021/09/29 11:30 | Markos Kalovelonis v Michail Pervolarakis | 3-6,2-6 |
| ITF M25 Johannesburgo | 2021/09/23 08:00 | Khololwam Montsi v Markos Kalovelonis | 6-1,6-3 |
| ITF M25 Johannesburgo | 2021/09/22 08:35 | Markos Kalovelonis v Makoto Ochi | 6-4,6-4 |
| ITF M25 Lesa | 2021/08/25 10:45 | Andrea Basso v Markos Kalovelonis | 6-3,6-2 |
| UTR Pro Tennis Series - Barcelona | 2021/08/14 08:40 | Pablo Carretero v Markos Kalovelonis | 6-7,1-0 |
| UTR Pro Tennis Series - Barcelona | 2021/08/12 13:00 | Markos Kalovelonis v Olexiy Kolisnyk | 4-6,4-6 |
| UTR Pro Tennis Series - Barcelona | 2021/08/11 07:00 | Markos Kalovelonis v Xavier Gabarro | 6-3,6-0 |
| UTR Pro Tennis Series - Barcelona | 2021/08/10 10:00 | Markos Kalovelonis v Andrey Chepelev | 6-7,6-2,3-5 |
| ITF M15 Kazán | 2021/10/13 11:45 | Dostanbek Tashbulatov v Marat Sharipov | 3-6,2-6 |
| ITF M15 Chornomorsk | 2021/09/02 11:55 | Artem Podorozhnyi v Dostanbek Tashbulatov | 6-4,3-6,6-3 |
| ITF M15 Chornomorsk | 2021/08/31 08:45 | Richard Zusman v Dostanbek Tashbulatov | 6-7,5-7 |
| ITF M15 Monastir | 2021/08/24 08:30 | Dostanbek Tashbulatov v Gage Brymer | 2-6,2-6 |
| ITF M15 Monastir | 2021/08/15 09:30 | Dostanbek Tashbulatov v Chanchai Sookton-Eng | 6-7,2-6 |
| ITF M15 Telavi | 2021/08/06 06:20 | Dostanbek Tashbulatov v Yan Bondarevskiy | 1-6,1-6 |
| ITF M15 Telavi | 2021/08/05 06:30 | Simon A Ivanov v Dostanbek Tashbulatov | 6-4,4-6,2-6 |
| ITF M15 Telavi | 2021/08/03 05:35 | Dostanbek Tashbulatov v Alibek Kachmazov | 6-1,6-2 |