Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| Challenger Chengdu | 2019/08/01 06:00 | Ze Zhang v Yan Bai | 6-7,7-6,3-6 |
| Challenger Chengdu | 2019/07/30 05:50 | Ze Zhang v Lucas Catarina | 6-3,4-6,6-2 |
| Wimbledon | 2019/06/24 12:25 | Ze Zhang v Salvatore Caruso | 6-4,5-7,1-6 |
| Challenger Nottingham | 2019/06/11 11:30 | Yuichi Sugita v Ze Zhang | 6-3,3-6,6-3 |
| Challenger Poznan | 2019/06/03 09:40 | Ze Zhang v Viktor Durasovic | 4-6,6-2,6-7 |
| Franska öppna | 2019/05/22 11:40 | Ze Zhang v Salvatore Caruso | 2-6,2-6 |
| Franska öppna | 2019/05/20 11:25 | Ze Zhang v Filip Horansky | 7-6,6-2 |
| Challenger Aix en Provence | 2019/05/07 08:00 | Ze Zhang v Elias Ymer | 7-5,2-6,3-6 |
| Challenger Yokkaichi | 2019/08/06 01:00 | Kousuke Ogura v Shuichi Sekiguchi | 1-6,3-6 |
| Challenger Chengdu | 2019/08/02 09:15 | Shuichi Sekiguchi v Tatsuma Ito | 2-6,1-6 |
| Challenger Chengdu | 2019/08/01 07:45 | Goncalo Oliveira v Shuichi Sekiguchi | 4-6,6-3,4-6 |
| Challenger Chengdu | 2019/07/31 08:55 | Shuichi Sekiguchi v Tsung-Hua Yang | 6-4,6-4 |
| Challenger Chengdu | 2019/07/29 10:30 | Weiqiang Zheng v Shuichi Sekiguchi | 5-7,1-6 |
| Challenger Nur-Sultan | 2019/07/18 05:00 | Egor Gerasimov v Shuichi Sekiguchi | 6-2,6-0 |
| Challenger Nur-Sultan | 2019/07/16 05:00 | Shuichi Sekiguchi v Zhizhen Zhang | 7-5,6-4 |
| Challenger Nur-Sultan | 2019/07/15 06:45 | Shuichi Sekiguchi v Dostanbek Tashbulatov | 6-3,6-1 |