| Wimbledon | 06/24 12:20 | 44 | [168] Joao Domingues v Soonwoo Kwon [126] | 0-6,3-6 | |
| Challenger Ilkley | 06/20 13:00 | 26 | [131] Soonwoo Kwon v Ugo Humbert [64] | 2-6,5-7 | |
| Challenger Ilkley | 06/19 12:25 | 25 | [129] Gianluca Mager v Soonwoo Kwon [131] | 6-4,2-6,0-6 | |
| Challenger Ilkley | 06/18 11:35 | 24 | [131] Soonwoo Kwon v Evan Hoyt [499] | 6-0,6-4 | |
| Challenger Nottingham | 06/14 13:30 | 26 | [113] Dennis Novak v Soonwoo Kwon [133] | 7-6,6-3 | |
| Challenger Nottingham | 06/12 13:30 | 25 | [207] Mirza Basic v Soonwoo Kwon [133] | 6-7,4-6 | |
| Challenger Surbiton | 06/06 12:40 | 26 | [135] Soonwoo Kwon v Matthias Bachinger [126] | 6-2,6-7,6-7 | |
| Challenger Surbiton | 06/05 09:00 | 25 | Alastair Gray v Soonwoo Kwon | 2-6,5-7 | |
| Challenger Surbiton | 06/04 12:40 | 25 | Jordan Thompson v Soonwoo Kwon | Cancelled | |
| Challenger Surbiton | 06/03 15:55 | 24 | [135] Soonwoo Kwon v JC Aragone [268] | 6-4,6-1 | |
| French Open | 05/21 08:00 | 44 | [227] Attila Balazs v Soonwoo Kwon [135] | 7-5,6-3 | |
| Challenger Gwangju | 05/18 02:00 | 28 | [240] Dudi Sela v Soonwoo Kwon [147] | 6-4,7-5 | |
| Challenger Gwangju | 05/17 04:00 | 27 | [147] Soonwoo Kwon v Tung-Lin Wu [287] | 6-1,6-0 | |
| Challenger Gwangju | 05/16 02:00 | 26 | [147] Soonwoo Kwon v Yuichi Sugita [187] | 6-4,6-7,6-4 | |
| Challenger Gwangju | 05/14 03:25 | 25 | [147] Soonwoo Kwon v Liam Broady [295] | 6-2,7-6 | |
| Challenger Busan | 05/08 05:05 | 25 | [289] Tsung-Hua Yang v Soonwoo Kwon [135] | 6-3,7-6 | |
| Challenger Seoul | 05/05 03:00 | 29 | [162] Soonwoo Kwon v Max Purcell [268] | 7-5,7-5 | |
| Challenger Seoul | 05/04 03:00 | 28 | [162] Soonwoo Kwon v Tung-Lin Wu [316] | 7-6,6-3 | |
| Challenger Seoul | 05/03 04:10 | 27 | [227] Yasutaka Uchiyama v Soonwoo Kwon [162] | 4-6,7-6,5-7 | |
| Challenger Seoul | 05/02 05:35 | 26 | [162] Soonwoo Kwon v Evgeny Donskoy [136] | 7-6,6-3 | |
| Challenger Seoul | 04/30 02:00 | 25 | [162] Soonwoo Kwon v Shintaro Imai [400] | 6-3,6-2 | |
| Challenger Taipei | 04/13 05:00 | 28 | [164] Soonwoo Kwon v Dennis Novak [156] | 3-6,4-6 | |
| Challenger Taipei | 04/12 04:00 | 27 | [164] Soonwoo Kwon v Ramkumar Ramanathan [141] | 7-6,6-3 | |
| Challenger Taipei | 04/11 05:10 | 26 | [96] Lloyd Harris v Soonwoo Kwon [164] | 5-7,7-6,3-6 | |
| Challenger Taipei | 04/10 02:00 | 25 | [325] Luke Saville v Soonwoo Kwon [164] | 4-6,4-6 | |
| Challenger Zhangjiagang | 03/22 04:15 | 27 | [169] Soonwoo Kwon v Lorenzo Giustino [189] | 3-6,2-6 | |
| Challenger Zhangjiagang | 03/21 03:00 | 26 | [169] Soonwoo Kwon v Filip Peliwo [239] | 6-4,6-2 | |
| Challenger Zhangjiagang | 03/20 08:10 | 25 | [169] Soonwoo Kwon v Guilherme Clezar [256] | 7-6,6-3 | |
| Challenger Shenzhen | 03/15 04:00 | 27 | [170] Soonwoo Kwon v Marcos Baghdatis [129] | 4-6,6-3,3-6 | |
| Challenger Shenzhen | 03/14 10:40 | 26 | [170] Soonwoo Kwon v Max Purcell [266] | 6-3,6-3 |