| First Round |
| 2 Grigor Dimitrov |
| Bye |
| First Round |
| 1 Fabio Fognini |
| Bye |
| First Round |
| 4 Denis Shapovalov |
| Bye |
| First Round |
| 3 Taylor Fritz |
| Bye |
| First Round | 1 | 2 | 3 | ||
| 6 Reilly Opelka | 5 | 6 | 4 | ||
| Stefano Travaglia | 7 | 4 | 6 | ||
| Winner: Stefano Travaglia | |||||
| First Round | 1 | 2 | 3 | ||
| 8 Daniel Evans | 6 | 1 | 0 | ||
| Bernard Tomic | 4 | 6 | 0 | ||
| In-Progress | |||||
| First Round | |||||
| Janko Tipsarevic | |||||
| Corentin Moutet | |||||
| Pre-Match | |||||
| First Round |
| 1 Gael Monfils |
| Bye |
| First Round |
| 3 Diego Schwartzman |
| Bye |
| First Round |
| 2 David Goffin |
| Bye |
| First Round |
| 4 Stan Wawrinka |
| Bye |
| First Round | 1 | 2 | 3 | ||
| 5 Guido Pella | 5 | 6 | 6 | ||
| Peter Gojowczyk | 7 | 4 | 5 | ||
| In-Progress | |||||
| First Round | |||||
| 6 Jo-Wilfried Tsonga | |||||
| Lorenzo Sonego | |||||
| Pre-Match | |||||
| First Round |
| 3 Marin Cilic |
| Bye |
| First Round |
| 4 Dusan Lajovic |
| Bye |
| First Round |
| 2 Karen Khachanov |
| Bye |
| First Round |
| 1 Daniil Medvedev |
| Bye |
| First Round | 1 | 2 | 3 | ||
| 5 Cristian Garin | 6 | 62 | 64 | ||
| Andreas Seppi | 3 | 77 | 77 | ||
| Winner: Andreas Seppi | |||||
| First Round | 1 | 2 | 3 | ||
| Lukas Rosol | 64 | 79 | 6 | ||
| Juan Ignacio Londero | 77 | 67 | 3 | ||
| Winner: Lukas Rosol | |||||
| First Round | |||||
| 7 Adrian Mannarino | |||||
| Damir Dzumhur | |||||
| Pre-Match | |||||
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