| Fabio Fognini - Matteo Berrettini | 6-1 6-3 |
| Victor Troicki - Stefano Napolitano | 7-6 6-1 |
| Alexander Zverev (16) - Kevin Anderson | 6-4 4-6 6-4 |
| Tomas Berdych (12) - Mischa Zverev | 7-6 6-4 |
| Carlos Berlocq - Robin Haase | 6-3 7-5 |
| Tommy Haas - Ernesto Escobedo | 6-0 4-6 7-6 |
| Benoit Paire - Nicolas Mahut | 6-3 6-4 |
| Florian Mayer - Thiago Monteiro | 6-4 6-2 |
| John Isner - Albert Ramos Viñolas (14) | 6-7 7-6 6-1 |
| David Goffin (9) - Thomaz Bellucci | 6-7 6-3 6-4 |
| Fernando Verdasco - Donald Young | 6-3 6-3 |
| Ryan Harrison - Jared Donaldson | 2-6 7-6 6-3 |
| Pablo Cuevas - Adrian Mannarino | 6-4 7-6 |
| Jan-Lennard Struff - Bernard Tomic | 6-7 6-1 6-4 |
| Sam Querrey - Lucas Pouille (11) | 7-6 7-6 |
| Jack Sock (13) - Diego Sebastian Schwartzman | 6-4 1-6 7-5 |
| Jiri Vesely - Daniel Evans | 6-3 6-1 |
| Nicolas Almagro - Andreas Seppi | 7-6 6-3 |
| David Ferrer - Feliciano Lopez | 4-6 6-3 6-1 |
| Kyle Edmund - Joao Sousa | 6-3 6-4 |
| Juan Martin Del Potro - Grigor Dimitrov (10) | 3-6 6-2 6-3 |
| Pablo Carreno Busta (15) - Gilles Simon | 6-3 6-3 |
| Roberto Bautista Agut - Alexandr Dolgopolov | 6-4 6-2 |
| Gianluca Mager - Marsel Ilhan | 7-6 4-6 0-4 rit. |
| Fabio Fognini - Andy Murray (1) | 6-2 6-4 |
| Alexander Zverev (16) - Victor Troicki | 6-3 6-4 |
| Tomas Berdych (12) - Carlos Berlocq | 6-3 6-4 |
| Milos Raonic (5) - Tommy Haas | 6-4 6-3 |
| Stanislas Wawrinka (3) - Benoit Paire | 6-3 1-6 6-3 |
| John Isner - Florian Mayer | 7-6 7-6 |
| David Goffin (9) - Fernando Verdasco | 3-6 6-3 6-2 |
| Marin Cilic (6) - Ryan Harrison | 6-3 6-2 |
| Dominic Thiem (8) - Pablo Cuevas | 7-6 6-4 |
| Sam Querrey - Jan-Lennard Struff | 6-4 6-3 |
| Jack Sock (13) - Jiri Vesely | 6-4 3-6 7-6 |
| Nicolas Almagro - Rafael Nadal (4) | 0-3 rit. |
| Kei Nishikori (7) - David Ferrer | 7-5 6-2 |
| Juan Martin Del Potro - Kyle Edmund | 7-5 6-4 |
| Roberto Bautista Agut - Pablo Carreno Busta (15) | 6-7 6-1 6-4 |
| Novak Djokovic (2) - Aljaz Bedene | 7-6 6-2 |