 Portugal: W25 Lisbon 2 - Doubles - Main |
|---|
| 1/8-finals | Marcinkevica D./Poznikhirenko G. | Cengiz B./Oz I. | 1:2 (4:6, 6:4, 9:11) | details | 29.09.2021 |
 Ecuador: W25 Salinas 2 - Doubles - Main |
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| Quarter-finals | Marcinkevica D./Poznikhirenko G. | Rodriguez V./Sanchez A. S. | 0:2 (3:6, 5:7) | details | 13.05.2021 |
| 1/8-finals | Marcinkevica D./Poznikhirenko G. | Gomez Pezuela Cano M./Riera J. | 2:0 (6:2, 6:1) | details | 12.05.2021 |
| Ecuador: W25 Salinas - Doubles - Main |
|---|
| Quarter-finals | Cabaj Awad J./Jorge F. | Marcinkevica D./Poznikhirenko G. | 2:1 (4:6, 6:3, 10:5) | details | 06.05.2021 |
| 1/8-finals | Gamiz A./Nefedova A. | Marcinkevica D./Poznikhirenko G. | 1:2 (4:6, 6:3, 2:10) | details | 05.05.2021 |
| Portugal: W25 Oeiras 2 - Doubles - Main |
|---|
| 1/8-finals | Shapatava S./Webley-Smith E. | Marcinkevica D./Poznikhirenko G. | 2:0 (6:1, 6:2) | details | 28.04.2021 |
| Portugal: W25 Oeiras - Doubles - Main |
|---|
| Quarter-finals | Lamens S./Melnikova M. | Marcinkevica D./Poznikhirenko G. | 2:0 (6:4, 6:3) | details | 22.04.2021 |
| 1/8-finals | Marcinkevica D./Poznikhirenko G. | Azadinho C./Oliveira I. | 2:0 (6:1, 6:0) | details | 20.04.2021 |
