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| Monte-Carlo Rolex Masters | ||
| Surface: Clay | Date: Apr. 15 - Apr. 22 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Stefanos Tsitsipas | Loss | 3-6, 4-6 |
| Miami Open presented by Itau | ||
| Surface: Hard | Date: Mar. 20 - Apr. 1 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Viktor Troicki | Win | 6-3, 6-7 (4-7), 7-6 (8-6) |
| Second Round | Damir Dzumhur | Win | 6-1, 7-5 |
| Third Round | Sam Querrey | Win | 6-4, 3-6, 7-5 |
| Fourth Round | Borna Coric | Loss | 6-7 (2-7), 6-4, 4-6 |
| BNP Paribas Open | ||
| Surface: Hard | Date: Mar. 7 - Mar. 18 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Ricardas Berankis | Win | 6-3, 6-4 |
| Second Round | Pablo Cuevas | Loss | 6-7 (4-7), 3-6 |
| Abierto Mexicano TELCEL | ||
| Surface: Hard | Date: Feb. 26 - Mar. 3 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Kei Nishikori | Win | 6-7 (3-7), 6-3, 6-1 |
| Second Round | Dominic Thiem | Loss | 2-6, 3-6 |
| Delray Beach Open | ||
| Surface: Hard | Date: Feb. 19 - Feb. 25 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Ivo Karlovic | Win | 7-5, 7-6 (7-4) |
| Second Round | Jared Donaldson | Win | 6-7 (6-8), 6-4, 6-4 |
| Quarterfinals | Taylor Fritz | Win | 7-5, 6-4 |
| Semifinals | Frances Tiafoe | Loss | 5-7, 4-6 |
| Australian Open | ||
| Surface: Hard | Date: Jan. 15 - Jan. 28 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Stefanos Tsitsipas | Win | 6-1, 6-3, 7-6 (7-5) |
| Second Round | Jo-Wilfried Tsonga | Loss | 6-3, 3-6, 6-1, 6-7 (4-7), 5-7 |
| ASB Classic | ||
| Surface: Hard | Date: Jan. 1 - Jan. 13 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Rogerio Dutra Silva | Win | 6-3, 6-2 |
| Second Round | Juan Martin Del Potro | Loss | 2-6, 4-6 |
| Brisbane International presented by Suncorp | ||
| Surface: Hard | Date: Dec. 31 - Jan. 7 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Kyle Edmund | Loss | 7-6 (7-5), 6-7 (4-7), 4-6 |
© 2018 by STATS.