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| Gerry Weber Open | ||
| Surface: Grass | Date: Jun. 18 - Jun. 24 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Philipp Kohlschreiber | Loss | 6-4, 3-6, 1-2 Retired |
| MercedesCup | ||
| Surface: Grass | Date: Jun. 11 - Jun. 17 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Denis Kudla | Win | 6-3, 6-4 |
| Second Round | Milos Raonic | Loss | 2-6, 4-6 |
| Roland Garros | ||
| Surface: Red Clay | Date: May 27 - Jun. 10 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Vasek Pospisil | Win | 6-3, 6-3, 7-6 (7-5) |
| Second Round | Kyle Edmund | Loss | 0-6, 6-1, 2-6, 3-6 |
| Banque Eric Sturdza Geneva Open | ||
| Surface: Clay | Date: May 20 - May 26 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Albert Ramos-Vinolas | Win | 6-1, 6-2 |
| Second Round | Frances Tiafoe | Win | 7-6 (7-5), 6-4 |
| Quarterfinals | Stan Wawrinka | Win | 6-4, 6-0 |
| Semifinals | Steve Johnson | Win | 2-6, 6-4, 6-1 |
| Final | Peter Gojowczyk | Win | 6-2, 6-2 |
| BMW Open by FWU | ||
| Surface: Red Clay | Date: Apr. 30 - May 6 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Guido Pella | Win | 6-4, 7-5 |
| Second Round | Marco Cecchinato | Win | 7-6 (7-5), 6-1 |
| Quarterfinals | Maximilian Marterer | Loss | 3-6, 4-6 |
| Gazprom Hungarian Open | ||
| Surface: Red Clay | Date: Apr. 23 - Apr. 29 | Seed: 6 |
| Round | Opponent | W / L | Result |
| First Round | Yannick Maden | Loss | 6-4, 3-6, 2-6 |
| Monte-Carlo Rolex Masters | ||
| Surface: Clay | Date: Apr. 15 - Apr. 22 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Daniil Medvedev | Loss | 7-6 (7-4), 2-6, 5-7 |
| Grand Prix Hassan II | ||
| Surface: Red Clay | Date: Apr. 9 - Apr. 15 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Malek Jaziri | Loss | 6-1, 4-6, 2-6 |
| Miami Open presented by Itau | ||
| Surface: Hard | Date: Mar. 20 - Apr. 1 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Maximilian Marterer | Loss | 4-6, 4-6 |
| BNP Paribas Open | ||
| Surface: Hard | Date: Mar. 7 - Mar. 18 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Viktor Troicki | Win | 7-6 (7-3), 6-1 |
| Second Round | Marin Cilic | Loss | 5-7, 3-6 |
| Australian Open | ||
| Surface: Hard | Date: Jan. 15 - Jan. 28 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Radu Albot | Win | 6-2, 6-3, 4-6, 7-5 |
| Second Round | Sam Querrey | Win | 6-4, 7-6 (8-6), 4-6, 6-2 |
| Third Round | Nicolas Kicker | Win | 6-3, 6-3, 6-2 |
| Fourth Round | Roger Federer | Loss | 4-6, 6-7 (3-7), 2-6 |
| Tata Open Maharashtra | ||
| Surface: Hard | Date: Jan. 1 - Jan. 6 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Nicolas Kicker | Win | 6-0, 6-3 |
| Second Round | Benoit Paire | Loss | 4-6, 7-6 (7-4), 6-7 (6-8) |
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