Stadium: Hard Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/03 12:40 | Tim Heger v Raffael Schaer | 6-3,6-4 |
| ITF M15 Heraklion | 2021/11/02 07:00 | Raffael Schaer v Timofey Stepanov | 6-4,6-2 |
| ITF M15 Heraklion | 2021/11/01 09:00 | Raffael Schaer v Aleksandar Mihailovic | 6-4,7-5 |
| ITF M15 Parnu | 2021/10/28 07:00 | Raffael Schaer v Kenneth Raisma | 4-6,5-7 |
| ITF M15 Parnu | 2021/10/27 07:00 | Scott Duncan v Raffael Schaer | 2-6,4-6 |
| ITF M15 Parnu | 2021/10/26 08:00 | Raffael Schaer v Nikolaj Katic | 7-5,6-4 |
| ITF M15 Melilla | 2021/09/23 15:10 | Raffael Schaer v Ignacio Monzon | 5-7,6-3,2-6 |
| ITF M15 Melilla | 2021/09/21 08:00 | Federico Marchetti v Raffael Schaer | 4-6,3-6 |
| ITF M15 Heraklion | 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 | Stefan Ivic 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 Oleksandr Bielinskyi | 5-7,6-1,6-3 |
| ITF M15 Zlatibor | 2021/09/16 09:40 | Oleksandr Ovcharenko v Veljko Krstic | 6-1,6-1 |
| ITF M15 Zlatibor | 2021/09/14 11:10 | Tomislav Jotovski v Veljko Krstic | 4-6,1-6 |