Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/20 08:30 | Khumoyun Sultanov v Guy Orly Iradukunda | 4-6,0-6 |
| ITF M15 Monastir | 2021/05/19 11:20 | Khumoyun Sultanov v Robert Strombachs | 6-4,6-3 |
| Challenger St. Petersburg | 2021/03/08 07:00 | Khumoyun Sultanov v Tim Van Rijthoven | 2-6,1-6 |
| Challenger St. Petersburg Qual | 2021/03/07 09:35 | Khumoyun Sultanov v Daniil Glinka | 7-6,6-4 |
| Challenger St. Petersburg | 2021/03/01 13:25 | Altug Celikbilek v Khumoyun Sultanov | 6-4,6-1 |
| ITF M15 Antalya | 2021/02/12 10:30 | Khumoyun Sultanov v Filip Cristian Jianu | 2-6,1-6 |
| ITF M15 Antalya | 2021/02/11 09:20 | Khumoyun Sultanov v Alvaro Lopez San Martin | 6-2,6-3 |
| ITF M15 Antalya | 2021/02/10 07:00 | Khumoyun Sultanov v Gabriele Maria Noce | 6-7,6-3,7-6 |
| ITF M15 Monastir | 2021/05/24 12:30 | Tomas Farjat v Jacob Brumm | 6-0,7-6 |
| ITF M15 Monastir | 2021/05/24 08:00 | Tomas Farjat v Ezequiel Simonit | 6-3,6-1 |
| ITF M15 Monastir | 2021/05/23 08:00 | Tomas Farjat v Leonardo L Linquet | 7-6,7-5 |
| ITF M15 Monastir | 2021/05/19 08:30 | Berk Ilkel v Tomas Farjat | 7-5,7-6 |
| ITF M15 Monastir | 2021/05/17 12:30 | Tomas Farjat v Dong Ju Kim | 7-5,7-5 |
| ITF M15 Monastir | 2021/05/17 08:00 | Tomas Farjat v Imran Sibille | 3-6,6-4,10-5 |
| ITF M15 Monastir | 2021/05/12 08:30 | Thomas Fancutt v Tomas Farjat | 6-3,6-4 |
| ITF M15 Monastir | 2021/05/10 13:30 | Louis Tessa v Tomas Farjat | 4-6,2-6 |