Time Zone – GMT-5 (America/New_York)
| 1 | De Minaur A. (1) | Bye | |
| 2 | Koepfer D. | Carballes Baena R. | 0 : 2 |
| 3 | Vatutin A. (Q) | Gaston H. | 1 : 2 |
| 4 | Monteiro T. | Navone M. (7) | 1 : 2 |
| 5 | Auger-Aliassime F. (3) | Bye | |
| 6 | Collignon R. (WC) | Fucsovics M. | 0 : 2 |
| 7 | Bautista-Agut R. | van Assche L. (Q) | 2 : 0 |
| 8 | Gasquet R. (WC) | Etcheverry T. M. (6) | 0 : 2 |
| 9 | Giron M. (8) | Van De Zandschulp B. | 2 : 0 |
| 10 | Rinderknech A. | Blockx A. (WC) | 2 : 0 |
| 11 | Diaz Acosta F. | Bergs Z. | 0 : 2 |
| 12 | Bye | Baez S. | |
| 13 | Lehecka J. (5) | Munar J. | 2 : 0 |
| 14 | Bailly G. A. (Q) | Altmaier D. | 0 : 2 |
| 15 | Mpetshi Perricard G. | Seyboth Wild T. (Q) | 0 : 2 |
| 16 | Bye | Tsitsipas S. (2) |
| 1 | De Minaur A. (1) | Carballes Baena R. | 2 : 1 |
| 2 | Gaston H. | Navone M. (7) | 2 : 1 |
| 3 | Auger-Aliassime F. (3) | Fucsovics M. | 2 : 1 |
| 4 | Bautista-Agut R. | Etcheverry T. M. (6) | 2 : 0 |
| 5 | Giron M. (8) | Rinderknech A. | 2 : 0 |
| 6 | Bergs Z. | Baez S. | 2 : 0 |
| 7 | Lehecka J. (5) | Altmaier D. | 2 : 0 |
| 8 | Seyboth Wild T. | Tsitsipas S. (2) | 1 : 2 |
| 1 | De Minaur A. (1) | Gaston H. | 1 : 2 |
| 2 | Auger-Aliassime F. (3) | Bautista-Agut R. | 1 : 2 |
| 3 | Giron M. (8) | Bergs Z. | 2 : 0 |
| 4 | Lehecka J. (5) | Tsitsipas S. (2) | 2 : 0 |
| 1 | Gaston H. | Bautista-Agut R. | 0 : 2 |
| 2 | Giron M. (8) | Lehecka J. (5) | 1 : 2 |
| 1 | Bautista-Agut R. | Lehecka J. (5) | 2 : 0 |
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