Time Zone – GMT-5 (America/New_York)
| 1 | Zverev A. (1) | De Jong J. (Q) | 2 : 0 |
| 2 | Diaz Acosta F. | Gaston H. | 1 : 2 |
| 3 | Cobolli F. | Altmaier D. | 2 : 1 |
| 4 | Seyboth Wild T. | Zhang Z. (8) | 0 : 2 |
| 5 | Cerundolo F. (4) | Comesana F. (LL) | 2 : 0 |
| 6 | Kwon S. (PR) | Marterer M. (WC) | 1 : 2 |
| 7 | Blanchet U. (Q) | Popyrin A. | 2 : 1 |
| 8 | Martinez P. | Arnaldi M. (6) | 2 : 0 |
| 9 | Darderi L. (7) | Hardt N. | 2 : 1 |
| 10 | Molleker R. (WC) | Shevchenko A. | 1 : 2 |
| 11 | Meligeni Alves F. (Q) | Lajovic D. | 1 : 2 |
| 12 | Koepfer D. | Baez S. (3) | 0 : 2 |
| 13 | Fils A. (5) | Munar J. | 2 : 1 |
| 14 | Djere L. | Bergs Z. | 2 : 0 |
| 15 | Trungelliti M. (Q) | Ofner S. (RET.) | 1 : 0 |
| 16 | Marozsan F. | Rune H. (2) | 0 : 2 |
| 1 | Zverev A. (1) | Gaston H. | 2 : 1 |
| 2 | Cobolli F. | Zhang Z. (8) | 0 : 2 |
| 3 | Cerundolo F. (4) | Marterer M. | 2 : 0 |
| 4 | Blanchet U. | Martinez P. | 1 : 2 |
| 5 | Darderi L. (7) | Shevchenko A. | 2 : 1 |
| 6 | Lajovic D. | Baez S. (3) | 1 : 2 |
| 7 | Fils A. (5) | Djere L. | 2 : 0 |
| 8 | Trungelliti M. | Rune H. (2) | 0 : 2 |
| 1 | Zverev A. (1) | Zhang Z. (8) | 2 : 0 |
| 2 | Cerundolo F. (4) | Martinez P. | 1 : 2 |
| 3 | Darderi L. (7) | Baez S. (3) | 1 : 2 |
| 4 | Fils A. (5) | Rune H. (RET.) (2) | 1 : 0 |
| 1 | Zverev A. (1) | Martinez P. | 2 : 0 |
| 2 | Baez S. (3) | Fils A. (5) | 0 : 2 |
| 1 | Zverev A. (1) | Fils A. (5) | 1 : 2 |
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