Stadium: Court 2 Round: 27 Ground: Clay
| Challenger Sibiu | 2021/09/26 07:30 | Yan Bondarevskiy v David Poljak | 7-5,3-6,6-3 |
| Challenger Bucharest | 2021/09/19 09:45 | David Poljak v Uladzimir Ignatik | 4-6,1-6 |
| Challenger Banja Luka | 2021/09/07 08:00 | David Poljak v Tomas Martin Etcheverry | 2-6,5-7 |
| Challenger Banja Luka | 2021/09/06 11:35 | David Poljak v Mircea-Alexandru Jecan | 6-3,6-4 |
| Challenger Banja Luka | 2021/09/05 12:25 | David Poljak v Moez Echargui | 2-6,6-3,6-2 |
| Challenger Warsaw | 2021/08/22 12:15 | Jonathan Mridha v David Poljak | 2-6,6-4,6-2 |
| ITF M25 Prostejov | 2021/08/17 09:00 | Alex Rybakov v David Poljak | 7-6,7-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/08 08:00 | David Poljak v Zsombor Piros | 4-6,6-7 |
| ITF M25 Falun | 2021/09/27 11:55 | Valentin Royer v Sanjar Fayziev | 6-0,7-6 |
| ITF M25 Jonkoping | 2021/09/21 12:10 | Yuta Shimizu v Sanjar Fayziev | 6-2,6-1 |
| Davis Cup | 2021/09/18 13:45 | Casper Ruud v Sanjar Fayziev | 6-3,6-1 |
| ITF M25 Telavi | 2021/07/30 08:05 | Sanjar Fayziev v Aliaksandr Liaonenka | 3-6,6-1,6-4 |
| Challenger Nur-Sultan | 2021/07/19 05:45 | Edan Leshem v Sanjar Fayziev | 6-2,6-4 |
| Challenger Nur-Sultan Qual | 2021/07/18 04:00 | Markos Kalovelonis v Sanjar Fayziev | 7-6,3-6,6-7 |
| Challenger Nur-Sultan | 2021/07/11 06:35 | Sanjar Fayziev v Yshai Oliel | 1-6,7-6,1-6 |
| ITF M25 Nur-Sultan | 2021/07/09 05:00 | Andrey Kuznetsov v Sanjar Fayziev | 4-6,6-1,6-4 |