| UTR Pro Tennis Series Nis | 2021/10/06 08:30 | Ivan Liutarevich v Lawrence Bataljin | 7-5,6-3 |
| 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 10:00 | Ivan Liutarevich v Stefan Ivic | 6-4,6-0 |
| UTR Pro Tennis Series Zadar | 2021/10/02 13:00 | Lawrence Bataljin v Ivan Liutarevich | 6-4,6-3 |
| UTR Pro Tennis Series Zadar | 2021/09/30 12:00 | Ivan Liutarevich v Michalis Sakellaridis | 6-7,5-6 |
| UTR Pro Tennis Series Zadar | 2021/09/29 15:00 | Ivan Liutarevich v Deni Zmak | 4-6,6-4,6-6 |
| UTR Pro Tennis Series Zadar | 2021/09/28 11:00 | Ivan Liutarevich v Ivan Denisov | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/09/27 11:00 | Ivan Liutarevich v Maxim Krapivin | 6-4,5-1 |
| UTR Pro Tennis Series Nis | 2021/10/06 08:30 | Stefan Ivic v Oleksandr Bielinskyi | 4-6,6-2,6-0 |
| UTR Pro Tennis Series Nis | 2021/10/04 08:30 | Veljko Krstic v Oleksandr Bielinskyi | 5-7,6-1,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 12:30 | Oleksandr Bielinskyi v Noah Lopez | 6-3,4-5 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 13:43 | Oleksandr Bielinskyi v Buvaysar Gadamauri | 6-7,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/09/25 10:00 | Oleksandr Bielinskyi v Artem Podorozhnyi | 6-3,6-3 |
| UTR Pro Tennis Series Mulheim | 2021/09/24 13:30 | Jing L Weng v Oleksandr Bielinskyi | 1-6,6-3,1-6 |
| UTR Pro Tennis Series Mulheim | 2021/09/23 12:30 | George Botezan v Oleksandr Bielinskyi | 2-6,6-4,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/09/21 09:30 | Pablo Carretero v Oleksandr Bielinskyi | 6-4,4-6,4-5 |