Wimbledon, London, Great Britain 06/28 12:45 15 Chung, Hyeon v Enzo Couacaud Retired
Wimbledon, London, Great Britain 06/26 14:00 14 Dimitar Kuzmanov v Chung, Hyeon 2-6,6-3,3-6
Ilkley, Great Britain 06/17 10:00 14 Chung, Hyeon v Jesper De Jong Retired
Challenger - Nottingham 06/13 13:55 25 Nuno Borges v Chung, Hyeon 6-3,6-2
Surbiton, Great Britain 06/05 12:40 25 Chung, Hyeon v Andy Murray 3-6,2-6
Challenger - Busan 05/09 03:30 25 Chung, Hyeon v Yasutaka Uchiyama 3-6,7-6,2-6
Challenger Seoul 04/26 03:20 25 Chung, Hyeon v Jordan Thompson 2-6,4-6
French Open, Paris, France 09/23 14:50 15 [149] Chung, Hyeon v Renzo Olivo [208] 6-7,2-6
French Open, Paris, France 09/22 09:55 14 [344] Crepatte, Baptiste v Chung, Hyeon [148] 6-7,4-6
Prostejov, Czech Republic 09/07 14:20 25 [123] Jozef Kovalik v Chung, Hyeon [144] 7-6,6-2
Challenger - Ostrava 09/02 10:30 25 [167] Lukas Rosol v Chung, Hyeon [144] 2-6,6-4,6-0
Challenger Prague 2 08/25 10:00 25 [224] Zdenek Kolar v Chung, Hyeon [142] 6-3,6-1
Challenger - Indian Wells 03/02 19:10 24 [185] Thai-Son Kwiatkowski v Chung, Hyeon [142] 7-6,6-2
Open d'Australie 01/15 05:55 44 Lorenzo Musetti v Chung, Hyeon Cancelled
Challenger Canberra 01/07 00:50 24 Akira Santillan v Chung, Hyeon Cancelled
Mubadala World Tennis Championship 12/20 11:00 29 [23] Andrey Rublev v Chung, Hyeon [128] 7-6,7-6
Mubadala World Tennis Championship 12/19 14:00 27 [17] Karen Khachanov v Chung, Hyeon [128] 7-6,6-4
Mubadala World Tennis Championship 12/19 14:00 27 Daniil Medvedev v Chung, Hyeon Cancelled
ATP Vienna 10/24 15:00 26 [139] Chung, Hyeon v Andrey Rublev [22] 4-6,2-6
ATP Vienna 10/22 13:55 25 [139] Chung, Hyeon v Milos Raonic [32] 6-4,7-5
ATP Stockholm 10/13 13:05 64 Chung, Hyeon v Stebe, Cedrik-Marcel 6-3,3-6,3-6
ATP Tokyo 10/04 10:00 27 [15] David Goffin v Chung, Hyeon [143] 6-2,6-2
ATP Tokyo 10/03 07:40 26 [143] Chung, Hyeon v Marin Cilic [30] 6-4,3-6,6-1
ATP Tokyo 09/30 09:30 25 [54] Lorenzo Sonego v Chung, Hyeon [143] 6-3,3-6,4-6
Chengdu, Chine 09/25 05:00 25 [145] Chung, Hyeon v Joao Sousa [62] 6-1,3-6,4-6
US Open, New York, USA 08/31 17:55 25 [170] Chung, Hyeon v Rafael Nadal [2] 3-6,4-6,2-6
US Open, New York, USA 08/29 22:55 24 [34] Verdasco, Fernando v Chung, Hyeon [170] 6-1,6-2,5-7,3-6,6-7
US Open, New York, USA 08/27 19:05 23 [170] Chung, Hyeon v Ernesto Escobedo [206] 3-6,6-4,6-7,6-4,6-2
US Open, New York, USA 08/23 17:45 46 [107] Ymer, Mikael v Chung, Hyeon [151] 1-6,3-6
US Open, New York, USA 08/21 18:35 45 [211] Stefano Napolitano v Chung, Hyeon [151] 2-6,3-6