Stadium: Court 16 Round: 14 Ground: Clay
| Challenger Manama | 2021/11/22 10:10 | Khumoyun Sultanov v Marek Gengel | 6-4,6-7,0-6 |
| Challenger Manama | 2021/11/21 11:45 | Khumoyun Sultanov v Omar Ahmed | 6-3,6-2 |
| ITF M25 Nur-Sultan | 2021/10/29 05:00 | Yan Sabanin v Khumoyun Sultanov | 6-3,6-4 |
| ITF M25 Nur-Sultan | 2021/10/28 04:55 | Sergey Fomin v Khumoyun Sultanov | 6-7,0-6 |
| ITF M25 Nur-Sultan | 2021/10/27 07:35 | Dostanbek Tashbulatov v Khumoyun Sultanov | 3-6,3-6 |
| 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 |
| Challenger Tenerife | 2021/10/31 13:10 | Jakub Paul v Miguel Damas | 2-6,6-2,2-6 |
| ITF M25 Hamburg | 2021/10/24 10:00 | Henri Squire v Jakub Paul | 4-6,2-6 |
| ITF M25 Hamburg | 2021/10/23 11:50 | Louis Wessels v Jakub Paul | 2-6,4-6 |
| ITF M25 Hamburg | 2021/10/22 10:00 | Jakub Paul v Leandro Riedi | 7-5,6-4 |
| ITF M25 Hamburg | 2021/10/21 15:50 | Elmar Ejupovic v Jakub Paul | 6-2,2-6,2-6 |
| ITF M25 Hamburg | 2021/10/19 12:45 | Jakub Paul v Filip Bergevi | 6-4,6-3 |
| ITF M25 Prague | 2021/10/07 10:15 | Jakub Paul v Marek Gengel | 2-6,4-6 |
| ITF M25 Prague | 2021/10/05 12:45 | Jakub Paul v Ondrej Krstev | 7-5,6-4 |