Stadium: Court 6 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/26 12:15 | Khumoyun Sultanov v Tomas Farjat | 6-3,6-4 |
| 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 Monastir | 2021/05/26 14:25 | Gustavo Heide v Eliakim Coulibaly | 4-6,3-6 |
| ITF M15 Monastir | 2021/04/22 10:15 | Eliakim Coulibaly v Yunseong Chung | 5-7,3-6 |
| ITF M15 Monastir | 2021/04/21 08:30 | Evan Zhu v Eliakim Coulibaly | 3-6,3-6 |
| ITF M15 Monastir | 2021/04/19 08:30 | Franco Agamenone v Eliakim Coulibaly | 6-2,6-3 |
| ITF M15 Monastir | 2021/04/18 09:30 | Eliakim Coulibaly v Maximilian Neuchrist | 3-6,6-2,6-3 |
| ITF M15 Monastir | 2021/04/16 08:30 | Eliakim Coulibaly v Gilbert S K Junior | 7-5,6-4 |
| ITF M15 Monastir | 2021/04/15 08:30 | Eliakim Coulibaly v Omar Giacalone | 6-2,6-4 |
| ITF M15 Monastir | 2021/04/14 08:25 | Michal Dembek v Eliakim Coulibaly | 6-3,3-6,2-6 |