Time Zone – GMT-5 (America/New_York)
| 1 | Rublev A. (1) | Borges N. | 2 : 0 |
| 2 | Cilic M. (PR) | Tabilo A. | 0 : 2 |
| 3 | Mannarino A. | Wawrinka S. (WC) | 1 : 2 |
| 4 | Etcheverry T. M. | Shelton B. (6) | 0 : 2 |
| 5 | Tsitsipas S. (3) | Cerundolo F. | 2 : 1 |
| 6 | Van De Zandschulp B. (Q) | Bublik A. (RET.) | 1 : 1 |
| 7 | Martinez P. | Lehecka J. | 2 : 0 |
| 8 | Altmaier D. (Q) | Fils A. (7) | 0 : 2 |
| 9 | Humbert U. (5) | Kym J. (Q) | 2 : 1 |
| 10 | Goffin D. (LL) | Arnaldi M. | 2 : 1 |
| 11 | Stricker D. (WC) | Griekspoor T. | 2 : 0 |
| 12 | Jarry N. | Rune H. (4) | 0 : 2 |
| 13 | Auger-Aliassime F. (8) | Baez S. | 2 : 0 |
| 14 | Duckworth J. (Q) | Mpetshi Perricard G. | 0 : 2 |
| 15 | Shapovalov D. (WC) | Shang J. | 2 : 0 |
| 16 | Bautista-Agut R. (SE) | Ruud C. (2) | 2 : 1 |
| 1 | Rublev A. (1) | Tabilo A. | 2 : 0 |
| 2 | Wawrinka S. | Shelton B. (6) | 0 : 2 |
| 3 | Tsitsipas S. (3) | Van De Zandschulp B. | 2 : 0 |
| 4 | Martinez P. | Fils A. (7) | 0 : 2 |
| 5 | Humbert U. (5) | Goffin D. | 1 : 2 |
| 6 | Stricker D. | Rune H. (4) | 0 : 2 |
| 7 | Auger-Aliassime F. (8) | Mpetshi Perricard G. | 0 : 2 |
| 8 | Shapovalov D. | Bautista-Agut R. | 2 : 0 |
| 1 | Rublev A. (1) | Shelton B. (6) | 1 : 2 |
| 2 | Tsitsipas S. (3) | Fils A. (7) | 0 : 2 |
| 3 | Goffin D. | Rune H. (4) | 0 : 2 |
| 4 | Mpetshi Perricard G. | Shapovalov D. | 2 : 1 |
| 1 | Shelton B. (6) | Fils A. (7) | 2 : 0 |
| 2 | Rune H. (4) | Mpetshi Perricard G. | 0 : 2 |
| 1 | Shelton B. (6) | Mpetshi Perricard G. | 0 : 2 |
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