Head to Head
| Challenger Columbus | 2019/06/14 17:00 | Ji Sung Nam v Zhizhen Zhang | 6-3,6-2 |
Home History
| Davis Cup | 2019/09/14 02:00 | Zhizhen Zhang v Soonwoo Kwon | 6-7,7-6,5-7 |
| Challenger Jinan | 2019/09/08 06:00 | Go Soeda v Zhizhen Zhang | 5-7,6-2,4-6 |
| Challenger Jinan | 2019/09/07 06:00 | Zhizhen Zhang v Soonwoo Kwon | 6-4,6-3 |
| Challenger Jinan | 2019/09/06 04:00 | Zhizhen Zhang v Max Purcell | 7-6,6-1 |
| Challenger Jinan | 2019/09/05 03:00 | Zhizhen Zhang v Chun Hsin Tseng | 6-4,6-3 |
| Challenger Jinan | 2019/09/04 02:00 | Steven Diez v Zhizhen Zhang | 3-6,3-6 |
| Challenger Jinan | 2019/09/02 05:05 | Zhizhen Zhang v Jie Cui | 2-6,6-3,6-3 |
| Challenger Baotou | 2019/08/29 07:25 | Tung-Lin Wu v Zhizhen Zhang | 6-3,6-4 |
Away History
| Davis Cup | 2019/09/14 04:50 | Zhe Li v Ji Sung Nam | 6-7,6-7 |
| Challenger Jinan | 2019/09/03 04:45 | Ivan Nedelko v Ji Sung Nam | 4-6,7-5,6-3 |
| Challenger Baotou | 2019/08/29 02:00 | Ji Sung Nam v Yan Bai | 3-6,6-4,5-7 |
| Challenger Baotou | 2019/08/27 05:40 | Ji Sung Nam v Arjun Kadhe | 6-3,6-3 |
| Challenger Yokkaichi | 2019/08/09 04:30 | Sho Shimabukuro v Ji Sung Nam | 6-7,6-3,6-2 |
| Challenger Yokkaichi | 2019/08/08 03:20 | Ji Sung Nam v Hiroki Moriya | 6-2,5-7,7-6 |
| Challenger Yokkaichi | 2019/08/06 04:35 | Ji Sung Nam v Jumpei Yamasaki | 6-3,6-2 |
| Challenger Chengdu | 2019/08/02 04:00 | Ji Sung Nam v Hyeon Chung | 6-7,6-1,3-6 |