Head to Head
| Challenger Shenzhen 2 | 2017/10/30 04:30 | Zhizhen Zhang v Soonwoo Kwon | 6-3,3-6,5-7 |
| Challenger Chengdu | 2017/07/31 02:00 | Zhizhen Zhang v Soonwoo Kwon | 6-7,6-4,6-1 |
Home History
| Challenger Columbus | 2019/06/14 17:00 | Ji Sung Nam v Zhizhen Zhang | 6-3,6-2 |
| Challenger Columbus | 2019/06/13 20:30 | Zhizhen Zhang v Francisco Cerundolo | 6-4,6-4 |
| Challenger Columbus | 2019/06/12 16:05 | Zhe Li v Zhizhen Zhang | 4-6,4-6 |
| Challenger Columbus | 2019/06/10 22:55 | Zhizhen Zhang v Harri Heliovaara | 6-3,6-4 |
| Challenger Little Rock | 2019/06/07 21:00 | Zhizhen Zhang v Duckhee Lee | 4-6,7-6,6-7 |
| Challenger Little Rock | 2019/06/05 16:35 | Donald Young v Zhizhen Zhang | 4-6,6-3,3-6 |
| Challenger Little Rock | 2019/06/03 17:50 | Jared Hiltzik v Zhizhen Zhang | 6-3,4-6,3-6 |
| Challenger Jerusalem | 2019/05/22 07:00 | Tak Khunn Wang v Zhizhen Zhang | 6-4,7-6 |
Away History
| Wimbledon | 2019/06/27 10:00 | Daniel Brands v Soonwoo Kwon | 2-6,7-6,1-6,0-6 |
| Wimbledon | 2019/06/26 10:00 | Marc Polmans v Soonwoo Kwon | 2-6,2-6 |
| Wimbledon | 2019/06/24 12:20 | Joao Domingues v Soonwoo Kwon | 0-6,3-6 |
| Challenger Ilkley | 2019/06/20 13:00 | Soonwoo Kwon v Ugo Humbert | 2-6,5-7 |
| Challenger Ilkley | 2019/06/19 12:25 | Gianluca Mager v Soonwoo Kwon | 6-4,2-6,0-6 |
| Challenger Ilkley | 2019/06/17 17:45 | Soonwoo Kwon v Evan Hoyt | 6-0,6-4 |
| Challenger Nottingham | 2019/06/14 13:30 | Dennis Novak v Soonwoo Kwon | 7-6,6-3 |
| Challenger Nottingham | 2019/06/12 13:30 | Mirza Basic v Soonwoo Kwon | 6-7,4-6 |
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