Stadion: Court 1 Round: 28 Ground: Clay
| Challenger - Almaty - Herrendoppel | 2021/06/10 08:10 | Menendez-Maceiras/Ortega-Olmedo v De Jong/Sachko | 1-6,2-6 |
| Challenger - Almaty - Herrendoppel | 2021/06/09 07:20 | Gabashvili/Giustino v De Jong/Sachko | 3-6,4-6 |
| ITF - M25 - Prag - Herrendoppel | 2021/05/11 14:30 | Siniakov/Svrcina v De Jong/Sachko | 6-4,2-6,10-7 |
| Challenger - Almaty - Herrendoppel | 2021/06/10 09:15 | Barrios-Vera/Bonadio v Popko/Safwat | 7-6,5-7,10-8 |
| Challenger - Almaty - Herrendoppel | 2021/06/09 08:35 | Tseng/Wu v Barrios-Vera/Bonadio | 4-6,6-2,8-10 |