Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| UTR Pro Tennis Series Nis | 2021/10/09 08:00 | Petar Teodorovic v Petar Pjevcevic | 6-7,4-5 |
| UTR Pro Tennis Series Nis | 2021/10/08 14:15 | Petar Teodorovic v Denys Klok | 7-5,6-0 |
| UTR Pro Tennis Series Nis | 2021/10/06 07:00 | Petar Teodorovic v Andrey Chepelev | 4-6,3-6 |
| UTR Pro Tennis Series Nis | 2021/10/05 07:30 | Petar Teodorovic v Egor Novikov | 6-1,6-4 |
| UTR Pro Tennis Series Nis | 2021/10/04 07:00 | Aleksandar Ljubojevic v Petar Teodorovic | 4-6,3-6 |
| ITF M15 Pirot | 2021/09/21 14:55 | Savva Polukhin v Petar Teodorovic | 6-2,6-2 |
| ITF M15 Zlatibor | 2021/09/15 08:00 | Petar Teodorovic v Peter Nagy | 4-6,2-6 |
| UTR Pro Tennis Series - Beograd | 2021/07/10 10:00 | Petar Teodorovic v Aleksa Mardjonovic | 2-6,6-4,3-6 |
| ITF M15 Sharm El Sheikh | 2021/10/26 09:10 | Loic Cloes v Haoyuan Huang | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2021/10/25 10:30 | Haoyuan Huang v Eirik Groener | 5-7,7-5,10-3 |
| ITF M15 Sharm El Sheikh | 2021/10/24 14:30 | Vladislav Gorbatenko v Haoyuan Huang | 3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/10/22 08:00 | Haoyuan Huang v Peter Fajta | 3-6,6-7 |
| ITF M15 Sharm El Sheikh | 2021/10/21 09:15 | Ryan Nijboer v Haoyuan Huang | 6-4,6-7,3-6 |
| ITF M15 Sharm El Sheikh | 2021/10/20 09:05 | Pijus Vaitiekunas v Haoyuan Huang | 5-7,4-6 |
| ITF M15 Sharm El Sheikh | 2021/10/19 09:05 | Haoyuan Huang v Ali Habib | 6-3,6-4 |
| ITF M25 Qujing | 2019/07/10 06:20 | Haoyuan Huang v Jonathan Mridha | 3-6,3-6 |