| UTR Pro Tennis Series Portoroz | 2021/08/16 08:00 | Zmak, Deni v Maulenov, Timur | 6-0,6-0 |
| UTR Pro Tennis Series Portoroz | 2021/08/22 10:00 | Zmak, Deni v Bielinskyi, Oleksandr | 6-2,7-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/21 09:30 | Kolisnyk, Olexiy v Zmak, Deni | 4-6,6-7 |
| UTR Pro Tennis Series Portoroz | 2021/08/20 08:00 | Parshutin, Denis v Zmak, Deni | 3-6,1-5 |
| UTR Pro Tennis Series Portoroz | 2021/08/19 10:35 | Adamson, Alec v Zmak, Deni | 0-6,2-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/17 08:00 | Gal Emersic Potocnik v Zmak, Deni | 1-6,4-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/16 08:00 | Zmak, Deni v Maulenov, Timur | 6-0,6-0 |
| UTR Pro Tennis Series Zadar | 2021/07/04 10:00 | Matija Pecotic v Zmak, Deni | 6-3,6-3 |
| UTR Pro Tennis Series Zadar | 2021/07/03 08:30 | Krstanovic, Josip v Zmak, Deni | 5-7,3-5 |
| UTR Pro Tennis Series Portoroz | 2021/08/22 08:30 | Maulenov, Timur v Zitnik, Tilen | 6-3,2-6,2-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/21 13:15 | Maulenov, Timur v Jan Dimitrijevic | 6-4,6-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/20 09:30 | Adamson, Alec v Maulenov, Timur | 2-6,3-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/19 08:00 | Gal Emersic Potocnik v Maulenov, Timur | 3-6,6-1,4-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/18 09:30 | Parshutin, Denis v Maulenov, Timur | 6-3,4-6,2-6 |
| UTR Pro Tennis Series Portoroz | 2021/08/16 08:00 | Zmak, Deni v Maulenov, Timur | 6-0,6-0 |
| ITF M15 Novomoskovsk | 2021/05/31 06:15 | Gorodynskyi, Vladyslav v Maulenov, Timur | 3-6,6-3,7-10 |
| ITF M15 Novomoskovsk | 2021/05/30 06:15 | Galfinger, Rostislav v Maulenov, Timur | 6-2,1-6,6-10 |