Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2019/12/11 08:00 | Michail Pervolarakis v Markos Kalovelonis | 6-3,3-6,6-3 |
| ITF M15 Heraklion | 2019/06/01 09:10 | Markos Kalovelonis v Michail Pervolarakis | 4-6,0-6 |
| ITF Greece F8 | 2018/11/16 08:00 | Michail Pervolarakis v Markos Kalovelonis | 6-4,6-3 |
| ITF Greece F7 | 2018/11/10 08:00 | Michail Pervolarakis v Markos Kalovelonis | 7-6,6-4 |
| ITF M25 Johannesburg | 2021/09/23 08:00 | Khololwam Montsi v Markos Kalovelonis | 6-1,6-3 |
| ITF M25 Johannesburg | 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 |
| UTR Pro Tennis Series Barcelona | 2021/08/09 13:45 | Markos Kalovelonis v Jaume Pla Malfeito | 6-3,5-3 |
| ITF M25 Johannesburg | 2021/09/26 09:30 | Alastair Gray v Michail Pervolarakis | 4-6,6-3,6-2 |
| ITF M25 Johannesburg | 2021/09/25 08:00 | Michail Pervolarakis v Benjamin Lock | 6-4,7-6 |
| ITF M25 Johannesburg | 2021/09/24 10:05 | Rio Noguchi v Michail Pervolarakis | 4-6,2-6 |
| ITF M25 Johannesburg | 2021/09/22 09:05 | Connor H Van Schalkwyk v Michail Pervolarakis | 6-4,1-6,2-6 |
| Davis Cup | 2021/09/18 10:35 | Michail Pervolarakis v Laurynas Grigelis | 6-7,6-3,5-7 |
| UTR Pro Tennis Series California | 2021/09/03 15:00 | Michail Pervolarakis v Drew Baird | 6-4,3-6,5-7 |
| UTR Pro Tennis Series California | 2021/09/01 21:00 | Michail Pervolarakis v Arthur Bellegy | 6-4,1-6,5-1 |
| UTR Pro Tennis Series California | 2021/08/31 15:00 | Michail Pervolarakis v Shahin Khaledan | 7-5,5-2 |