Stadium: Court 1 Round: 19 Ground: Hardcourt outdoor
| Challenger Nur-Sultan Qual | 2021/02/28 05:20 | Ulises Blanch v Yan Bondarevskiy | 7-6,6-3 |
| Challenger Nur-Sultan | 2021/02/24 11:10 | Martin Klizan v Ulises Blanch | 6-7,6-2,7-6 |
| Challenger Nur-Sultan | 2021/02/23 07:15 | Dmitry Popko v Ulises Blanch | 4-6,6-2,6-7 |
| Challenger Potchefstroom | 2021/02/17 10:30 | Teymuraz Gabashvili v Ulises Blanch | 6-4,1-6,6-3 |
| Challenger Potchefstroom | 2021/02/16 08:00 | Ulises Blanch v Peter Polansky | 7-6,6-3 |
| Challenger Potchefstroom | 2021/02/09 14:45 | Jay Clarke v Ulises Blanch | 6-7,4-6 |
| Australian Open | 2021/01/12 09:25 | Ulises Blanch v Viktor Troicki | 5-7,3-6 |
| Australian Open | 2021/01/10 09:15 | Andrey Kuznetsov v Ulises Blanch | 4-6,1-6 |
| ITF M15 St Petersburg | 2021/02/10 10:40 | Alibek Kachmazov v Marat Deviatiarov | 2-6,4-6 |
| ITF M15 St Petersburg | 2021/02/07 08:00 | Alexey Zakharov v Alibek Kachmazov | 4-6,7-5,4-6 |
| ITF M15 St Petersburg | 2021/02/06 08:00 | Alibek Kachmazov v Konstantin Kravchuk | 6-3,6-3 |
| ITF M15 St Petersburg | 2021/02/05 08:30 | Alibek Kachmazov v Alexander Cozbinov | 6-4,7-6 |
| ITF M15 St Petersburg | 2021/02/04 09:00 | Alibek Kachmazov v Vladimir Ivanov | 6-1,6-0 |
| ITF M15 St Petersburg | 2021/02/03 10:00 | Daniel Michalski v Alibek Kachmazov | 2-6,5-7 |
| ITF M15 St Petersburg | 2021/02/01 09:25 | Alibek Kachmazov v Sergei Pogosian | 6-2,6-0 |
| ITF M15 Monastir | 2021/01/11 09:30 | Alibek Kachmazov v Antonio Campo | 3-6,7-5,5-10 |