| UTR Pro Tennis Series - Barcelona | 2021/08/11 08:30 | Pablo Carretero v Kuzey Cekirge | 4-6,6-0,6-0 |
| UTR Pro Tennis Series - Barcelona | 2021/08/09 07:00 | Pablo Carretero v Miguel Fernando Pereira | 6-7,6-1,6-0 |
| UTR Pro Tennis Series - Barcelona | 2021/08/08 10:00 | Nicolas Bianchi v Pablo Carretero | 6-1,0-6,6-1 |
| UTR Pro Tennis Series - Barcelona | 2021/08/07 13:00 | Daniel Sancho Arbizu v Pablo Carretero | 3-6,6-3,4-6 |
| UTR Pro Tennis Series - Barcelona | 2021/08/06 11:30 | Federico Zeballos v Pablo Carretero | 6-0,6-1 |
| UTR Pro Tennis Series - Barcelona | 2021/08/05 10:00 | Marat Deviatiarov v Pablo Carretero | 6-0,6-1 |
| UTR Pro Tennis Series - Barcelona | 2021/08/03 08:30 | Jay Friend v Pablo Carretero | 6-4,5-7,0-5 |
| UTR Pro Tennis Series - Barcelona | 2021/08/02 10:00 | Pablo Carretero v Angel G Melgar | 7-6,6-3 |
| 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 Telavi | 2021/07/30 06:00 | Marco De Rossi v Markos Kalovelonis | 6-3,6-3 |
| Challenger Nur-Sultan - kvalifikace | 2021/07/18 04:00 | Markos Kalovelonis v Sanjar Fayziev | 7-6,3-6,6-7 |
| ITF M25 Nur-Sultan | 2021/07/07 07:00 | Markos Kalovelonis v Lucas Catarina | 6-4,6-7,2-6 |
| ITF M15 Šymkent | 2021/06/03 07:25 | Vladyslav Manafov v Markos Kalovelonis | 6-1,3-6,6-3 |