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| US Open | ||
| Surface: Hard | Date: Aug. 27 - Sep. 9 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Jack Sock | Loss | 0-6, 6-7 (4-7), 2-6 |
| Winston-Salem Open | ||
| Surface: Hard | Date: Aug. 19 - Aug. 25 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Marton Fucsovics | Win | 6-3, 4-6, 6-0 |
| Second Round | Radu Albot | Win | 6-4, 6-3 |
| Third Round | Daniil Medvedev | Loss | 5-7, 1-6 |
| J. Safra Sarasin Suisse Open Gstaad | ||
| Surface: Clay | Date: Jul. 23 - Jul. 29 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Felix Auger-Aliassime | Loss | 3-6, 6-7 (3-7) |
| SkiStar Swedish Open | ||
| Surface: Clay | Date: Jul. 16 - Jul. 22 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | John Millman | Loss | 0-6, 2-6 |
| Wimbledon | ||
| Surface: Grass | Date: Jul. 2 - Jul. 15 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Horacio Zeballos | Loss | 6-4, 6-7 (1-7), 4-6, 4-6 |
| Roland Garros | ||
| Surface: Red Clay | Date: May 27 - Jun. 10 | Seed: None |
| Round | Opponent | W / L | Result |
| First Round | Taylor Fritz | Win | 6-7 (4-7), 6-3, 3-6, 6-2, 6-3 |
| Second Round | Fernando Verdasco | Loss | 3-6, 2-6, 2-6 |
© 2018 by STATS.