Face à face
| Jinan, China | 2019/09/07 06:00 | Zhizhen Zhang v Soonwoo Kwon | 6-4,6-3 |
| Shenzhen II, Chine | 2017/10/30 04:30 | Zhizhen Zhang v Soonwoo Kwon | 6-3,3-6,5-7 |
| Chengdu, China | 2017/07/31 02:00 | Zhizhen Zhang v Soonwoo Kwon | 6-7,6-4,6-1 |
Home History
| Jinan, China | 2019/09/08 06:00 | Soeda, Go v Zhizhen Zhang | 5-7,6-2,4-6 |
| Jinan, China | 2019/09/07 06:00 | Zhizhen Zhang v Soonwoo Kwon | 6-4,6-3 |
| Jinan, China | 2019/09/06 04:00 | Zhizhen Zhang v Max Purcell | 7-6,6-1 |
| Jinan, China | 2019/09/05 03:00 | Zhizhen Zhang v Chun Hsin Tseng | 6-4,6-3 |
| Jinan, China | 2019/09/04 02:00 | Steven Diez v Zhizhen Zhang | 3-6,3-6 |
| Jinan, China | 2019/09/02 05:05 | Zhizhen Zhang v Jie Cui | 2-6,6-3,6-3 |
| Baotou, Chine | 2019/08/29 07:25 | Tung-Lin Wu v Zhizhen Zhang | 6-3,6-4 |
| Baotou, Chine | 2019/08/27 05:40 | Zhizhen Zhang v Crepatte, Baptiste | 6-4,6-2 |
Away History
| Jinan, China | 2019/09/07 06:00 | Zhizhen Zhang v Soonwoo Kwon | 6-4,6-3 |
| Jinan, China | 2019/09/06 04:00 | Gabashvili, Teimuraz v Soonwoo Kwon | 6-3,3-6,4-6 |
| Jinan, China | 2019/09/05 04:35 | Akira Santillan v Soonwoo Kwon | 6-7,4-6 |
| Jinan, China | 2019/09/04 07:20 | He, Yecong v Soonwoo Kwon | 4-6,2-6 |
| US Open, New York, USA | 2019/08/23 15:00 | Soonwoo Kwon v Steven Diez | 4-6,6-3,6-3 |
| US Open, New York, USA | 2019/08/21 15:00 | Soonwoo Kwon v Oscar Otte | 6-2,6-4 |
| US Open, New York, USA | 2019/08/19 19:05 | Soonwoo Kwon v Aragone, JC | 6-4,1-6,6-4 |
| Montreal, Canada | 2019/08/05 22:05 | Ilya Ivashka v Soonwoo Kwon | 7-6,6-4 |