Stadium: Central Court Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Héraklion | 2019/06/01 09:10 | Kalovelonis, Markos v Pervolarakis, Michail | 4-6,0-6 |
| ITF Greece F8 | 2018/11/16 08:00 | Pervolarakis, Michail v Kalovelonis, Markos | 6-4,6-3 |
| ITF Greece F7 | 2018/11/10 08:00 | Pervolarakis, Michail v Kalovelonis, Markos | 7-6,6-4 |
| ITF - M15 Héraklion | 2019/12/05 08:00 | Pervolarakis, Michail v Alibek Kachmazov | 4-6,4-6 |
| ITF - M15 Héraklion | 2019/12/04 08:00 | Pervolarakis, Michail v Smirnov, Artem | 6-4,7-6 |
| ITF M15 East Lansing | 2019/11/20 16:20 | Pervolarakis, Michail v Beran, Martin | 4-6,6-3,4-6 |
| Challenger Champaign | 2019/11/11 19:50 | Pervolarakis, Michail v Sigouin, Benjamin | 6-3,3-6,2-6 |
| Challenger Las Vegas | 2019/10/17 19:35 | Pervolarakis, Michail v Marcos Giron | 0-6,6-7 |
| Challenger Las Vegas | 2019/10/15 19:30 | Pervolarakis, Michail v Alex Kobelt | 6-1,6-3 |
| Challenger Las Vegas | 2019/10/14 18:00 | Pervolarakis, Michail v Sauer, Jordan | 6-2,6-0 |
| Challenger Fairfield | 2019/10/09 17:00 | Pervolarakis, Michail v Nicola Kuhn | 4-6,6-2,0-6 |
| ITF - M15 Héraklion | 2019/11/27 09:30 | Marek Gengel v Kalovelonis, Markos | 6-3,6-4 |
| ITF - M15 Héraklion | 2019/11/21 10:05 | Kalovelonis, Markos v Aidan Mchugh | 4-6,6-1,6-4 |
| ITF - M15 Héraklion | 2019/11/20 09:30 | Kalovelonis, Markos v Bothwell, Peter | 7-6,6-1 |
| Challenger - Pune | 2019/11/13 05:30 | Ramkumar Ramanathan v Kalovelonis, Markos | 6-3,6-4 |
| Challenger - Pune | 2019/11/12 05:30 | Kalovelonis, Markos v Prashanth, N. Vijay Sundar | 6-2,6-4 |
| ITF - M15 Héraklion | 2019/11/07 07:30 | Kalovelonis, Markos v Pedro Vives Marcos | 6-4,6-7,4-6 |
| ITF - M15 Héraklion | 2019/11/06 10:30 | Alexandar Lazarov v Kalovelonis, Markos | 6-1,5-7,3-6 |
| ITF - M15 Antalya | 2019/10/10 09:05 | Kalovelonis, Markos v Aleksandre Bakshi | 6-4,2-6,3-6 |