Round: 27 Ground: Hardcourt outdoor
| ATP Atlanta | 2018/07/25 17:00 | Ryan Harrison v Lukas Lacko | 2-6,6-2,6-3 |
| ATP Atlanta | 2018/07/24 16:30 | Ryan Harrison v James Duckworth | 4-6,7-6,6-1 |
| Wimbledon | 2018/07/04 12:25 | Adrian Mannarino v Ryan Harrison | 7-5,7-5,7-6 |
| Wimbledon | 2018/07/02 16:00 | Ryan Harrison v Roberto Carballes Baena | 6-1,6-4,6-2 |
| ATP Eastbourne | 2018/06/25 12:40 | Jay Clarke v Ryan Harrison | 6-4,6-1 |
| ATP Queens | 2018/06/19 17:45 | Ryan Harrison v Kyle Edmund | 6-7,4-6 |
| French Open | 2018/05/29 09:00 | Ryan Harrison v Maximilian Marterer | 1-6,3-6,5-7 |
| ATP Geneva | 2018/05/21 16:00 | Frances Tiafoe v Ryan Harrison | 3-6,7-6,6-4 |
| ATP Atlanta | 2018/07/25 15:00 | Taylor Fritz v Hyeon Chung | 4-6,6-7 |
| ATP Madrid | 2018/05/08 10:00 | Robin Haase v Hyeon Chung | 6-2,6-0 |
| ATP Munich | 2018/05/05 11:30 | Alexander Zverev v Hyeon Chung | 7-5,6-2 |
| ATP Munich | 2018/05/04 09:00 | Hyeon Chung v Martin Klizan | 6-3,6-4 |
| ATP Munich | 2018/05/02 13:20 | Hyeon Chung v Matthias Bachinger | 6-1,6-1 |
| ATP Miami | 2018/03/28 19:00 | Hyeon Chung v John Isner | 1-6,4-6 |
| ATP Miami | 2018/03/27 15:00 | Joao Sousa v Hyeon Chung | 4-6,3-6 |
| ATP Miami | 2018/03/25 15:00 | Hyeon Chung v Michael Mmoh | 6-1,6-1 |