Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/04/29 11:20 | Mariano Kestelboim v Yuta Kawahashi | 1-6,1-6 |
| ITF M15 Monastir | 2021/04/27 09:55 | Mariano Kestelboim v Ervin H Eminefendic | 6-3,6-0 |
| ITF M15 Cordoba | 2021/04/10 14:30 | Gonzalo Lama v Mariano Kestelboim | 6-4,6-4 |
| ITF M15 Cordoba | 2021/04/08 13:00 | Benjamin Dhoe v Mariano Kestelboim | 2-6,1-6 |
| ITF M15 Cordoba | 2021/04/06 14:45 | Santiago De La Fuente v Mariano Kestelboim | 2-6,1-6 |
| ITF M15 Villa Maria | 2021/04/02 13:55 | Mariano Kestelboim v Hernan Casanova | 6-1,4-6,2-6 |
| ITF M15 Villa Maria | 2021/04/01 15:30 | Mariano Kestelboim v Benjamin Dhoe | 6-3,6-3 |
| ITF M15 Villa Maria | 2021/03/31 15:10 | Mariano Kestelboim v Franco Emanuel Egea | 6-1,6-4 |
| ITF M15 Monastir | 2021/04/30 10:20 | Alibek Kachmazov v Lucas Catarina | 2-6,2-6 |
| 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 Kaasan | 2021/03/13 08:00 | Alexey Zakharov v Alibek Kachmazov | 7-5,6-3 |
| ITF M15 Kaasan | 2021/03/12 09:40 | Ivan Gakhov v Alibek Kachmazov | 3-6,7-6,3-6 |
| ITF M15 Kaasan | 2021/03/11 11:55 | Alibek Kachmazov v Alexander Stepin | 6-4,6-3 |
| ITF M15 Kaasan | 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 |