Time Zone – GMT-5 (America/New_York)
| 1 | Tiafoe F. (1) | Bye | |
| 2 | Daniel T. | Evans D. (Q) | 0 : 2 |
| 3 | Duckworth J. | Vukic A. | 0 : 2 |
| 4 | Safiullin R. | Mannarino A. (8) | 1 : 2 |
| 5 | Khachanov K. (3) | Bye | |
| 6 | Virtanen O. | Fognini F. | 2 : 0 |
| 7 | Hassan B. (Q) | Zhukayev B. (WC) | 0 : 2 |
| 8 | Skatov T. (WC) | Machac T. (5) | 0 : 2 |
| 9 | Zhang Z. (6) | Karatsev A. (Q) | 0 : 2 |
| 10 | Shevchenko A. | Kukushkin M. (Q) | 2 : 0 |
| 11 | Engel J. (WC) | Wong C. | 2 : 0 |
| 12 | Bye | Cerundolo F. (4) | |
| 13 | Marozsan F. (7) | Coric B. | 0 : 2 |
| 14 | O'Connell C. | Diallo G. | 0 : 2 |
| 15 | Dzumhur D. | Marterer M. | 0 : 2 |
| 16 | Bye | Tabilo A. (2) |
| 1 | Tiafoe F. (1) | Evans D. | 2 : 1 |
| 2 | Vukic A. | Mannarino A. (8) | 2 : 0 |
| 3 | Khachanov K. (3) | Virtanen O. | 2 : 0 |
| 4 | Zhukayev B. | Machac T. (RET.) (5) | 0 : 0 |
| 5 | Karatsev A. | Shevchenko A. | 1 : 2 |
| 6 | Engel J. | Cerundolo F. (4) | 0 : 2 |
| 7 | Coric B. | Diallo G. | 0 : 2 |
| 8 | Marterer M. | Tabilo A. (2) | 0 : 2 |
| 1 | Tiafoe F. (1) | Vukic A. | 0 : 2 |
| 2 | Khachanov K. (3) | Zhukayev B. | 2 : 0 |
| 3 | Shevchenko A. | Cerundolo F. (4) | 0 : 2 |
| 4 | Diallo G. | Tabilo A. (2) | 2 : 1 |
| 1 | Vukic A. | Khachanov K. (3) | 1 : 2 |
| 2 | Cerundolo F. (4) | Diallo G. | 0 : 2 |
| 1 | Khachanov K. (3) | Diallo G. | 2 : 1 |
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