© 2018 by STATS.Any commercial use or distribution without the express written consent of STATS is strictly prohibited.
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| US Open | ||
| Surface: Hard | Date: Aug. 27 - Sep. 9 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Stefano Travaglia | Win | 6-2, 2-6, 7-6 (8-6), 3-0 Retired |
| Second Round | Marin Cilic | Loss | 2-6, 0-6, 0-6 |
| Western & Southern Open | ||
| Surface: Hard | Date: Aug. 12 - Aug. 19 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Marton Fucsovics | Loss | 6-4, 3-6, 6-7 (6-8) |
| Citi Open | ||
| Surface: Hard | Date: Jul. 30 - Aug. 5 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Ilya Ivashka | Win | 6-4, 6-3 |
| Second Round | Frances Tiafoe | Loss | 2-6, 4-6 |
| BB&T Atlanta Open | ||
| Surface: Hard | Date: Jul. 23 - Jul. 29 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Alex De Minaur | Loss | 6-1, 6-7 (0-7), 6-7 (4-7) |
| Wimbledon | ||
| Surface: Grass | Date: Jul. 2 - Jul. 15 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Bernard Tomic | Loss | 4-6, 2-6, 6-7 (2-7) |
| Roland Garros | ||
| Surface: Red Clay | Date: May 27 - Jun. 10 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Tennys Sandgren | Win | 6-2, 6-2, 3-6, 6-3 |
| Second Round | Marin Cilic | Loss | 2-6, 2-6, 7-6 (7-3), 5-7 |
| Gazprom Hungarian Open | ||
| Surface: Red Clay | Date: Apr. 23 - Apr. 29 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Lorenzo Sonego | Loss | 7-6 (7-2), 6-7 (8-10), 4-6 |
© 2018 by STATS.