 | Car.Garcia - G.Minnen 6:4 1:6 7:6(5) | 2 s |
| L.A.fernandez - H.Watson 4:6 7:6(8) 1:6 | 2 s |
| Juvan - Podoroska 4:6 7:6(8) 1:6 | 5 s |
| L.Cabrera - A.K.schmiedlová 3:6 2:6 | 5 s |
| Veldheer - Muz.D.a.sibanda 6:1 6:1 | 2 s |
| Ch.Mchale - B.Haas 6:4 4:6 3:6 | 7 s |
| Di.Marcinkevica - Shinikova 3:6 4:6 | 5 s |
| Gabashvili - Bonzi 6:4 2:6 7:6(4) | 2 s |
| Kravchuk - Yevseyev 4:6 4:6 | 5 s |
| Struff - S.Tsitsipas 6:4 4:6 4:6 | 2 s |
| Friedsam - Mladenovic 6:3 6:3 | 6 s |
| J.S.nam - M.Polmans 3:6 5:7 | 3 s |
| Veselý - Lestienne 6:4 7:6(1) | 7 s |
| Garin - Davidovich Fokina 6:2 0:6 7:6(4) | 4 s |
| Tom.Paul - A.Zverev 6:3 6:4 | 4 s |
| Rus - Flink 4:3 ret. | 4 s |
| S.Johnson - T.Daniel 7:6(3) 6:2 | 5 s |
| Svitolina - Rus 6:0 6:1 | 6 s |
| Mott - M.Mcdonald 0:6 4:6 | 2 s |
| D.Evans - S.Tsitsipas 2:6 3:6 | 2 s |
| Nadal - Fritz 6:3 6:2 | 1 s |
| Paolini - K.Kučová 5:7 1:6 | 3 s |
| Rodionov - Uchida 7:6(5) 7:6(3) | 2 s |
 | Marchenko - Fayziev 6:1 6:4 | 7 s |
Trenéři
