 | Haerteis - Bourcet 6:2 6:0 | 3 s |
 | Gulbis - Opelka 7:6(5) 4:6 6:7(4) | 5 s |
 | W.Gervais - Catarina 1:6 2:6 | 1 s |
 | Nadal - So.W.kwon 6:2 6:1 | 2 s |
 | F.Coria - Clezar 1:6 7:6(5) 6:7(5) | 4 s |
 | Marcora - Giron 6:7(4) 1:6 | 4 s |
 | Roelofse - Barrientos 6:3 2:6 6:3 | 5 s |
 | Grenier - Couacaud 7:6(4) 7:6(4) | 4 s |
 | Doi - Begu 3:6 3:6 | 5 s |
 | Kecmanovic - J.Thompson 6:2 ret. | 6 s |
 | Siniaková - X.Han 6:2 6:2 | 4 s |
 | Safwat - T.Griekspoor 1:6 6:7(8) | 5 s |
 | Kotov - Popko 6:3 7:6(4) | 6 s |
 | Andujar - D.Young 6:3 6:1 | 7 s |
 | Crepatte - Musetti 6:3 6:2 | 5 s |
 | Ruse - Komardina 6:4 6:4 | 2 s |
 | Nishioka - Herbert 5:7 2:6 | 5 s |
 | Volfson - Baadi 3:6 7:5 4:6 | 6 s |
 | N.Djokovič - S.Tsitsipas 6:3 6:4 | 4 s |
 | Kirchheimer - J.Hernandez Fern. 4:6 6:2 6:3 | 5 s |
 | Swiatek - Vekic 6:4 7:5 | 7 s |
 | A.Ramos - C.Ruud 6:7(5) 2:6 | 6 s |
 | Komardina - Samir 6:0 6:4 | 2 s |
 | L.Samsonova - Hon 6:3 4:6 6:7(2) | 6 s |
 | J.J.wolf - R.Quiroz 6:2 4:6 6:2 | 6 s |
 | Ma.Cilič - B.Paire 6:2 5:7 6:7(1) | 5 s |
 | Ch.O`connell - Escoffier 6:3 6:4 | 5 s |
 | L.Zhu - Danilovic 4:6 5:7 | 6 s |
 | Peniston - Giron 2:6 6:7(4) | 7 s |
 | Durasovic - Zapata Miralles 1:6 4:6 | 1 s |