Davis Cup WG1 R1: ARG vs BLR 2021 ATP
Round robin
| Winner | Loser | Score | |
|---|---|---|---|
| Daniil Ostapenkov | d. | Diego Schwartzman | 6-4 6-3 |
| Guido Pella | d. | Erik Arutiunian | 6-1 6-2 |
| Diego Schwartzman | d. | Alexander Zgirovsky | 6-1 6-2 |
| Federico Coria | d. | Daniil Ostapenkov | 6-3 6-1 |
| Winner | Loser | Score | |
|---|---|---|---|
| Daniil Ostapenkov | d. | Diego Schwartzman | 6-4 6-3 |
| Guido Pella | d. | Erik Arutiunian | 6-1 6-2 |
| Diego Schwartzman | d. | Alexander Zgirovsky | 6-1 6-2 |
| Federico Coria | d. | Daniil Ostapenkov | 6-3 6-1 |