Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Maui | 2017/01/28 04:00 | Michael Mmoh v Hyeon Chung | 2-6,4-6 |
| ATP Delray Beach | 2018/02/22 23:35 | Hyeon Chung v Franko Skugor | 6-4,7-6 |
| ATP Delray Beach | 2018/02/19 18:55 | Hyeon Chung v Cameron Norrie | 3-6,6-3,6-1 |
| Australian Open | 2018/01/24 02:00 | Tennys Sandgren v Hyeon Chung | 4-6,6-7,3-6 |
| Australian Open | 2018/01/22 08:00 | Novak Djokovic v Hyeon Chung | 6-7,5-7,6-7 |
| Australian Open | 2018/01/20 04:05 | Hyeon Chung v Alexander Zverev | 5-7,7-6,2-6,6-3,6-0 |
| Australian Open | 2018/01/18 05:10 | Hyeon Chung v Daniil Medvedev | 7-6,6-1,6-1 |
| ATP Auckland | 2018/01/11 03:05 | David Ferrer v Hyeon Chung | 6-3,6-2 |
| ATP Auckland | 2018/01/10 07:25 | Hyeon Chung v John Isner | 7-6,5-7,6-2 |
| ATP New York Qual | 2018/02/11 20:55 | Tim Smyczek v Michael Mmoh | 6-2,6-3 |
| Challenger San Francisco | 2018/02/10 03:00 | Miomir Kecmanovic v Michael Mmoh | 7-6,6-7,6-1 |
| Challenger San Francisco | 2018/02/08 04:45 | Christopher Eubanks v Michael Mmoh | 4-6,4-6 |
| Challenger San Francisco | 2018/02/06 21:00 | Cristian Garin v Michael Mmoh | 2-6,3-6 |
| Challenger Newport Beach | 2018/01/25 18:00 | Michael Mmoh v Darian King | 6-1,2-6,1-6 |
| Challenger Newport Beach | 2018/01/23 18:00 | Cameron Norrie v Michael Mmoh | 2-6,4-6 |
| Australian Open Qual | 2018/01/10 01:00 | Andrew Whittington v Michael Mmoh | 7-6,6-1 |
| ATP Brisbane | 2018/01/05 01:00 | Michael Mmoh v Alex De Minaur | 4-6,0-6 |