Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF Korea F1 | 2014/04/25 03:00 | Hyeon Chung v Ji Sung Nam | 6-0,6-0 |
| Challenger Chengdu | 2019/08/01 03:00 | Dayne Kelly v Ji Sung Nam | 6-7,3-6 |
| Challenger Chengdu | 2019/07/31 03:50 | Mao-Xin Gong v Ji Sung Nam | 6-7,1-6 |
| Challenger Nur-Sultan | 2019/07/18 06:50 | Evgeny Donskoy v Ji Sung Nam | 3-6,6-1,6-4 |
| Challenger Nur-Sultan | 2019/07/16 08:25 | Teymuraz Gabashvili v Ji Sung Nam | 6-1,4-6,2-6 |
| ITF M15 Almaty | 2019/07/12 04:00 | Ji Sung Nam v Andrey Golubev | 3-6,3-6 |
| ITF M15 Almaty | 2019/07/11 04:00 | Ji Sung Nam v Sagadat Ayap | 6-1,3-6,6-1 |
| ITF M15 Almaty | 2019/07/09 07:30 | Ji Sung Nam v Sultan Narbekov | 6-1,6-1 |
| Challenger Columbus | 2019/06/16 17:55 | Ji Sung Nam v Mikael Torpegaard | 1-6,5-7 |
| Challenger Chengdu | 2019/08/01 03:00 | Di Wu v Hyeon Chung | 6-7,7-6,3-6 |
| Challenger Chengdu | 2019/07/30 08:10 | Kento Takeuchi v Hyeon Chung | 3-6,2-6 |
| ATP Rotterdam | 2019/02/11 20:05 | Hyeon Chung v Nikoloz Basilashvili | 6-4,6-7,2-6 |
| Ausztrál Open | 2019/01/17 03:40 | Hyeon Chung v Pierre-Hugues Herbert | 2-6,6-1,2-6,4-6 |
| Ausztrál Open | 2019/01/15 01:40 | Hyeon Chung v Bradley Klahn | 6-7,6-7,6-3,6-2,6-4 |
| ATP Auckland | 2019/01/08 02:15 | Rubin Statham v Hyeon Chung | 7-5,6-3 |
| ATP Pune | 2019/01/02 09:30 | Ernests Gulbis v Hyeon Chung | 7-6,6-2 |
| Mubadala World Tennis Championship | 2018/12/28 11:00 | Hyeon Chung v Dominic Thiem | 6-2,6-3 |