| ATP Acapulco | 02/28 04:00 | 27 | Rafael Nadal v Soonwoo Kwon | View | |
| ATP Acapulco | 02/26 22:00 | 26 | [76] Soonwoo Kwon v Dusan Lajovic [24] | 7-6,6-0 | |
| ATP Acapulco | 02/25 22:00 | 25 | [110] Taro Daniel v Soonwoo Kwon [76] | 2-6,6-2,3-6 | |
| ATP Acapulco | 02/25 22:00 | 25 | Reilly Opelka v Soonwoo Kwon | Cancelled | |
| ATP Delray Beach | 02/21 23:00 | 27 | [82] Soonwoo Kwon v Reilly Opelka [54] | 3-6,4-6 | |
| ATP Delray Beach | 02/19 17:30 | 26 | [82] Soonwoo Kwon v Ryan Harrison [433] | 6-4,3-6,7-6 | |
| ATP Delray Beach | 02/17 19:30 | 25 | [42] Adrian Mannarino v Soonwoo Kwon [82] | 6-1,3-6,2-6 | |
| ATP New York | 02/14 19:10 | 27 | [62] Kyle Edmund v Soonwoo Kwon [84] | 3-6,6-2,7-6 | |
| ATP New York | 02/13 00:30 | 26 | [84] Soonwoo Kwon v Milos Raonic [32] | 7-6,6-7,6-4 | |
| ATP New York | 02/11 17:00 | 25 | [112] Go Soeda v Soonwoo Kwon [84] | 2-6,7-6,3-6 | |
| ATP Pune | 02/07 17:00 | 27 | [88] Soonwoo Kwon v Egor Gerasimov [90] | 6-4,6-7,4-6 | |
| ATP Pune | 02/06 13:10 | 26 | [88] Soonwoo Kwon v Prajnesh Gunneswaran [122] | 6-3,7-6 | |
| Australian Open | 01/21 04:45 | 23 | [29] Nikoloz Basilashvili v Soonwoo Kwon [87] | 6-7,6-4,7-5,3-6,6-3 | |
| Kooyong Classic | 01/15 02:00 | 1 | [39] Marin Cilic v Soonwoo Kwon [83] | 6-2,4-6,10-4 | |
| Kooyong Classic | 01/14 04:35 | 1 | Milos Raonic v Soonwoo Kwon | 6-3,6-2 | |
| Challenger Canberra | 01/10 23:30 | 27 | [86] Soonwoo Kwon v Evgeny Donskoy [110] | 6-7,6-4,1-6 | |
| Challenger Canberra | 01/09 04:00 | 26 | [86] Soonwoo Kwon v Harry Bourchier [286] | 6-2,6-4 | |
| Challenger Canberra | 01/08 00:50 | 25 | [86] Soonwoo Kwon v Yannick Maden [124] | 6-1,6-2 | |
| Challenger Shenzhen 2 | 10/31 02:00 | 26 | [87] Soonwoo Kwon v Mohamed Safwat [219] | 4-6,6-7 | |
| Challenger Shenzhen 2 | 10/29 03:10 | 25 | [87] Soonwoo Kwon v Duckhee Lee [257] | 6-2,6-2 | |
| ATP Basel | 10/20 11:55 | 164 | [90] Alexei Popyrin v Soonwoo Kwon [88] | 4-6,6-3,6-4 | |
| ATP Basel | 10/19 13:15 | 64 | [293] Marc-Andrea Huesler v Soonwoo Kwon [88] | 6-4,3-6,3-6 | |
| ATP Antwerp | 10/16 11:55 | 26 | [20] Guido Pella v Soonwoo Kwon [88] | 7-5,7-5 | |
| ATP Antwerp | 10/15 11:45 | 25 | [88] Soonwoo Kwon v Richard Gasquet [57] | 1-6,6-3,6-4 | |
| ATP Tokyo | 09/29 03:35 | 164 | [53] Pablo Andujar v Soonwoo Kwon [91] | 7-5,6-4 | |
| ATP Tokyo | 09/28 06:00 | 64 | [110] Henri Laaksonen v Soonwoo Kwon [91] | 6-7,2-6 | |
| ATP Zhuhai | 09/26 06:40 | 26 | [93] Damir Dzumhur v Soonwoo Kwon [91] | 7-6,6-2 | |
| ATP Zhuhai | 09/25 05:30 | 25 | [91] Soonwoo Kwon v Lucas Pouille [24] | 7-6,6-2 | |
| ATP Zhuhai | 09/22 05:30 | 164 | [81] Soonwoo Kwon v Henri Laaksonen [110] | 6-2,5-7,6-4 | |
| ATP Zhuhai | 09/21 05:30 | 64 | Soonwoo Kwon v Miliaan Niesten | 6-3,6-2 |