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