Time Zone – GMT-5 (America/New_York)
| 1 | Rublev A. (1) | Bye | |
| 2 | van Assche L. | Cazaux A. | 2 : 0 |
| 3 | Shang J. | Ymer E. (Q) | 2 : 0 |
| 4 | Bye | Rinderknech A. (16) | |
| 5 | Carballes Baena R. (11) | Bye | |
| 6 | Kovacevic A. | Nishioka Y. | 2 : 1 |
| 7 | Cressy M. (Q) | Galan D. E. | 0 : 2 |
| 8 | Bye | Tiafoe F. (5) | |
| 9 | Korda S. (4) | Bye | |
| 10 | Karatsev A. | Garin C. | 0 : 2 |
| 11 | Purcell M. | Kokkinakis T. | 1 : 2 |
| 12 | Bye | Vukic A. (14) | |
| 13 | Mpetshi Perricard G. (9) | Bye | |
| 14 | Ruusuvuori E. | Coric B. | 2 : 1 |
| 15 | Opelka R. (WC) | Duckworth J. | 2 : 1 |
| 16 | Bye | Thompson J. (7) | |
| 17 | Davidovich Fokina A. (8) | Bye | |
| 18 | Krueger M. (Q) | Nardi L. (RET.) | 1 : 0 |
| 19 | Goffin D. | Ugo Carabelli C. | 2 : 0 |
| 20 | Bye | Cobolli F. (10) | |
| 21 | Michelsen A. (15) | Bye | |
| 22 | Bellucci M. (Q) | McDonald M. | 2 : 0 |
| 23 | Walton A. | Hong S. C. (Q) | 0 : 2 |
| 24 | Bye | Khachanov K. (3) | |
| 25 | Mannarino A. (6) | Bye | |
| 26 | Shapovalov D. (WC) | Bautista-Agut R. | 2 : 0 |
| 27 | Svajda Z. (LL) | Wolf J.J. (WC) | 0 : 2 |
| 28 | Bye | Kecmanovic M. (12) | |
| 29 | Nakashima B. (13) | Bye | |
| 30 | O'Connell C. | Mayot H. | 2 : 0 |
| 31 | Albot R. (Q) | Diaz Acosta F. | 2 : 0 |
| 32 | Bye | Shelton B. (2) |
| 1 | Rublev A. (1) | van Assche L. | 2 : 1 |
| 2 | Shang J. (RET.) | Rinderknech A. (16) | 0 : 0 |
| 3 | Carballes Baena R. (11) | Kovacevic A. | 0 : 2 |
| 4 | Galan D. E. | Tiafoe F. (5) | 1 : 2 |
| 5 | Korda S. (4) | Garin C. | 2 : 0 |
| 6 | Kokkinakis T. | Vukic A. (14) | 2 : 0 |
| 7 | Mpetshi Perricard G. (9) | Ruusuvuori E. | 2 : 0 |
| 8 | Opelka R. | Thompson J. (7) | 0 : 2 |
| 9 | Davidovich Fokina A. (8) | Krueger M. | 2 : 1 |
| 10 | Goffin D. | Cobolli F. (10) | 0 : 2 |
| 11 | Michelsen A. (15) | Bellucci M. | 2 : 0 |
| 12 | Hong S. C. | Khachanov K. (3) | 2 : 0 |
| 13 | Mannarino A. (6) | Shapovalov D. | 0 : 2 |
| 14 | Wolf J.J. | Kecmanovic M. (12) | 0 : 2 |
| 15 | Nakashima B. (13) | O'Connell C. | 2 : 0 |
| 16 | Albot R. | Shelton B. (2) | 1 : 2 |
| 1 | Rublev A. (1) | Rinderknech A. (16) | 2 : 0 |
| 2 | Kovacevic A. | Tiafoe F. (5) | 1 : 2 |
| 3 | Korda S. (4) | Kokkinakis T. (RET.) | 1 : 1 |
| 4 | Mpetshi Perricard G. (9) | Thompson J. (7) | 0 : 2 |
| 5 | Davidovich Fokina A. (8) | Cobolli F. (10) | 1 : 2 |
| 6 | Michelsen A. (15) | Hong S. C. | 2 : 0 |
| 7 | Shapovalov D. | Kecmanovic M. (12) | 2 : 1 |
| 8 | Nakashima B. (13) | Shelton B. (2) | 0 : 2 |
| 1 | Rublev A. (1) | Tiafoe F. (5) | 0 : 2 |
| 2 | Korda S. (4) | Thompson J. (7) | 2 : 0 |
| 3 | Cobolli F. (10) | Michelsen A. (15) | 2 : 1 |
| 4 | Shapovalov D. | Shelton B. (2) | 0 : 1 |
| 1 | Tiafoe F. (5) | Korda S. (4) | 0 : 2 |
| 2 | Cobolli F. (10) | Shelton B. (2) | 2 : 1 |
| 1 | Korda S. (4) | Cobolli F. (10) | 2 : 1 |
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