| Gombos - M.Baghdatis 3:6 4:6 | 3 s |
| Shapovalov - Coric 6:7(2) 6:4 4:6 | 3 s |
| Barty - Kostyuk 6:2 6:3 | 2 s |
| Rola - Rog.Silva 5:7 2:6 | 3 s |
| Seppi - S.Griekspoor 7:6(5) 6:4 | 3 s |
| Šrámková - Eraydin 7:6(3) 6:3 | 3 s |
| A.Ramos - J.Sousa 3:6 6:3 7:5 | 3 s |
| Medvedev - Kližan 6:4 6:3 | 3 s |
| Raina - Thandi 7:5 7:5 | 2 s |
| S.Stakhovsky - Mmoh 6:4 7:5 | 2 s |
| D.Dutra Da silva - Forti 5:7 6:1 0:5 ret. | 3 s |
| Kubler - Pella 4:6 5:7 6:4 6:7(3) | 3 s |
| Ramanathan - Fritz 4:6 4:6 | 2 s |
| Giron - S.Stakhovsky 7:5 6:7(4) 4:6 | 2 s |
| Van Rijthoven - T.K.wang 3:6 6:3 6:2 | 4 s |
| Kr.Plíšková - Kasatkina 6:3 5:7 4:6 | 5 s |
| Wickmayer - Dart 2:6 6:3 0:6 | 3 s |
| Pouille - Darcis 6:3 6:1 6:0 | 2 s |
| M.Baghdatis - Lestienne 5:7 1:6 | 5 s |
| G.Dimitrov - K.Anderson 2:6 2:6 | 3 s |
| Trongcharoenchaiku - Bava 6:2 6:2 | 2 s |
| T.K.wang - Van Rijthoven 6:3 6:2 | 6 s |