Stadium: Court 4 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/04/29 10:45 | Erik Crepaldi v Alibek Kachmazov | 1-6,2-6 |
| ITF M15 Monastir | 2021/04/28 12:30 | Alibek Kachmazov v Francesco Vilardo | 2-6,6-4,7-5 |
| ITF M15 Kazaň | 2021/03/13 08:00 | Alexey Zakharov v Alibek Kachmazov | 7-5,6-3 |
| ITF M15 Kazaň | 2021/03/12 09:40 | Ivan Gakhov v Alibek Kachmazov | 3-6,7-6,3-6 |
| ITF M15 Kazaň | 2021/03/11 11:55 | Alibek Kachmazov v Alexander Stepin | 6-4,6-3 |
| ITF M15 Kazaň | 2021/03/10 14:50 | Alibek Kachmazov v Egor Noskin | 6-2,6-1 |
| Challenger Nur-Sultan | 2021/03/03 06:05 | James Duckworth v Alibek Kachmazov | 6-4,5-7,7-5 |
| Challenger Nur-Sultan | 2021/03/01 06:15 | Ulises Blanch v Alibek Kachmazov | 2-6,6-4,3-6 |
| ITF M15 Monastir | 2021/04/29 12:40 | Savva Polukhin v Lucas Catarina | 6-4,4-6,2-6 |
| ITF M15 Monastir | 2021/04/28 08:30 | Michal Konečný v Lucas Catarina | 6-2,4-6,2-6 |
| ITF M25 Angers | 2021/04/25 11:30 | Lucas Catarina v Manuel Guinard | 5-7,4-6 |
| ITF M25 Angers | 2021/04/24 12:00 | Chun Hsin Tseng v Lucas Catarina | 6-2,4-6,3-6 |
| ITF M25 Angers | 2021/04/23 09:00 | Corentin Denolly v Lucas Catarina | 6-7,4-6 |
| ITF M25 Angers | 2021/04/22 09:00 | Vincent Stouff v Lucas Catarina | 6-7,4-6 |
| ITF M25 Angers | 2021/04/21 09:30 | Matteo Martineau v Lucas Catarina | 6-7,2-6 |
| ATP Monte Carlo | 2021/04/12 14:45 | Salvatore Caruso v Lucas Catarina | 6-7,7-6,6-3 |