Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Nur-Sultan | 2021/10/21 05:00 | Andrey Kuznetsov v Dostanbek Tashbulatov | 6-2,6-4 |
| ITF M25 Nur-Sultan | 2021/10/20 08:00 | Markos Kalovelonis v Dostanbek Tashbulatov | 6-3,3-6,4-6 |
| ITF M15 Kazan | 2021/10/13 11:45 | Dostanbek Tashbulatov v Marat Sharipov | 3-6,2-6 |
| ITF M15 Chornomorsk | 2021/09/02 11:55 | Artem Podorozhnyi v Dostanbek Tashbulatov | 6-4,3-6,6-3 |
| ITF M15 Chornomorsk | 2021/08/31 08:45 | Richard Zusman v Dostanbek Tashbulatov | 6-7,5-7 |
| ITF M15 Monastir | 2021/08/24 08:30 | Dostanbek Tashbulatov v Gage Brymer | 2-6,2-6 |
| ITF M15 Monastir | 2021/08/15 09:30 | Dostanbek Tashbulatov v Chanchai Sookton-Eng | 6-7,2-6 |
| ITF M15 Telavi | 2021/08/06 06:20 | Dostanbek Tashbulatov v Yan Bondarevskiy | 1-6,1-6 |
| ITF M25 Nur-Sultan | 2021/10/20 05:10 | Khumoyun Sultanov v Eric Vanshelboim | 4-6,3-6 |
| ITF M25 Prague | 2021/10/10 08:25 | Khumoyun Sultanov v David Poljak | 6-2,3-6,6-4 |
| ITF M25 Prague | 2021/10/09 08:25 | Timo Stodder v Khumoyun Sultanov | 6-4,3-6,5-7 |
| ITF M25 Prague | 2021/10/08 09:00 | Khumoyun Sultanov v Marek Gengel | 3-6,6-3,6-4 |
| ITF M25 Prague | 2021/10/07 08:00 | Khumoyun Sultanov v Andrew Paulson | 4-6,6-3,6-2 |
| ITF M25 Prague | 2021/10/06 08:00 | Khumoyun Sultanov v Vojtech Mares | 7-5,6-0 |
| ITF M25 Falun | 2021/10/01 14:30 | Khumoyun Sultanov v Valentin Royer | 2-6,3-6 |
| ITF M25 Falun | 2021/09/30 16:15 | Daniel Little v Khumoyun Sultanov | 4-6,2-6 |