USA: US Open - Doubles - Main |
| Quarter-finals | Kuzuhara B./Poljicak M. | Lilov V./Privara P. B. | 2:1 (65:7, 7:5, 10:6) | details | 10.09.2021 |
| 1/8-finals | Gomes M./Kang K. | Lilov V./Privara P. B. | 1:2 (6:4, 5:7, 6:10) | details | 08.09.2021 |
United Kingdom: Wimbledon - Doubles - Main |
| Quarter-finals | Lilov V./Privara P. B. | Butvilas E./Manzanera Pertusa A. | 1:2 (3:6, 6:3, 7:10) | details | 10.07.2021 |
| 1/8-finals | Kuzuhara B./Quinn E. | Lilov V./Privara P. B. | 0:2 (64:7, 2:6) | details | 08.07.2021 |
| 1/16-finals | Lilov V./Privara P. B. | Cosnet C./Lipp M. | 2:1 (4:6, 7:65, 11:9) | details | 07.07.2021 |
France: French Open - Doubles - Main |
| Semi-finals | Lilov V./Privara P. B. | Katz M./Samofalov G. | 0:2 (4:6, 66:7) | details | 11.06.2021 |
| Quarter-finals | Lilov V./Privara P. B. | Dahlberg M./Jurajda A. | 2:0 (6:2, 6:4) | details | 10.06.2021 |
| 1/8-finals | Lilov V./Privara P. B. | Quinn E./Wong C. | 2:1 (3:6, 6:4, 10:6) | details | 08.06.2021 |
| 1/16-finals | Borg L./Boscardin Dias P. | Lilov V./Privara P. B. | 0:2 (4:6, 64:7) | details | 07.06.2021 |