| Usipbekov - Kamke 1:6 0:6 | 3 s |
| Marchenko - Fayziev 6:1 6:4 | 3 s |
| Reboul - Me.D.a.sibanda 6:4 6:2 | 2 s |
| Musetti - B.Lock 5:7 5:7 | 4 s |
| L.Klein - Coppejans 6:3 4:6 1:6 | 2 s |
| Safwat - T.Griekspoor 1:6 6:7(8) | 5 s |
| Du.Brown - Denolly 7:6(4) 7:5 | 5 s |
| Elgin - S.Walkow 3:6 1:6 | 4 s |
| Du.Brown - Pichler 6:3 3:6 6:3 | 3 s |
| Vrbenský - Mat.Moraing 3:6 3:6 | 3 s |
| Karatsev - R.Haase 7:6(5) 6:1 | 2 s |
| Veldheer - Grenier 6:2 4:6 2:6 | 3 s |
| Rodionov - Kamke 6:3 7:6(3) | 4 s |
| K.Montsi - Karlovskiy 2:6 7:5 2:6 | 2 s |
| Galfinger - L.Klein 0:6 1:6 | 4 s |
| Kravchuk - Yevseyev 4:6 4:6 | 4 s |
| A.Khan - Kavcic 0:6 7:6(6) 6:4 | 3 s |
| Ortega Olmedo - J.Draper 5:7 3:6 | 3 s |
| N.Serdarusic - Bulitski 6:2 6:2 | 2 s |
| Moundir - T.Simon 5:7 3:6 | 3 s |
| Bonzi - Martineau 7:5 6:2 | 4 s |
| Musetti - Carr 6:2 7:5 | 3 s |
| Je.De Jong - Ramanathan 6:2 6:2 | 3 s |