| ITF - M15 Héraklion | 2021/11/14 07:00 | Christian Fellin v Veljko Krstic | 7-6,1-6,10-8 |
| ITF - M15 Héraklion | 2021/11/07 09:00 | Raffael Schaer v Veljko Krstic | 6-4,6-7,10-6 |
| ITF - M15 Héraklion | 2021/11/01 08:00 | Veljko Krstic v Alessandro Spadola | 5-7,2-6 |
| UTR Pro Tennis Series Nis | 2021/10/09 08:00 | Aleksa Mardjonovic v Veljko Krstic | 6-3,6-4 |
| UTR Pro Tennis Series Nis | 2021/10/08 14:15 | Ivic, Stefan v Veljko Krstic | 6-4,3-6,1-5 |
| UTR Pro Tennis Series Nis | 2021/10/07 08:30 | Lawrence Bataljin v Veljko Krstic | 7-6,3-6,5-7 |
| UTR Pro Tennis Series Nis | 2021/10/05 09:30 | Ivan Liutarevich v Veljko Krstic | 5-7,6-4,6-2 |
| UTR Pro Tennis Series Nis | 2021/10/04 08:30 | Veljko Krstic v Bielinskyi, Oleksandr | 5-7,6-1,6-3 |
| ITF - M15 Oberhaching | 2022/02/13 08:00 | Sandro Kopp v Weindl, Michael | 7-6,6-3 |
| German Championship | 2021/12/09 10:00 | Weindl, Michael v Kai Wehnelt | 3-6,1-6 |
| German Championship | 2021/12/08 11:00 | Guttau, Niklas v Weindl, Michael | 4-6,6-3,1-6 |
| ITF - M15 Héraklion | 2021/11/11 10:30 | Weindl, Michael v Peter Fajta | 6-3,6-7,6-7 |
| ITF - M15 Héraklion | 2021/11/10 08:30 | Ivanov, Simon Anthony v Weindl, Michael | 7-5,1-6,1-6 |
| ITF - M15 Héraklion | 2021/11/01 09:00 | Weindl, Michael v Papounidis, Ioannis | 3-6,6-2,3-10 |
| Challenger Ismaning | 2021/10/24 10:35 | Bachinger, Matthias v Weindl, Michael | 6-1,6-3 |
| ITF M15 Allershausen | 2021/09/01 09:00 | Boehler, Dominik v Weindl, Michael | 1-6,6-1,6-2 |