Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Taipei | 2019/04/08 03:20 | Kaichi Uchida v Duckhee Lee | 6-4,6-4 |
| Challenger Shenzhen | 2019/03/15 09:00 | Brayden Schnur v Duckhee Lee | 6-4,4-6,7-5 |
| Challenger Shenzhen | 2019/03/14 10:55 | Zhe Li v Duckhee Lee | 3-6,3-6 |
| Challenger Shenzhen | 2019/03/12 07:20 | Duckhee Lee v Yuichi Sugita | 6-3,6-4 |
| Challenger Shenzhen | 2019/03/11 03:50 | Zihao Xia v Duckhee Lee | 3-6,1-6 |
| Challenger Zhuhai | 2019/03/04 05:25 | Baptiste Crepatte v Duckhee Lee | 6-3,7-6 |
| Challenger Yokohama | 2019/03/01 02:00 | Duckhee Lee v Soonwoo Kwon | 1-6,0-6 |
| Challenger Yokohama | 2019/02/28 03:25 | Tatsuma Ito v Duckhee Lee | 3-6,6-4,6-7 |
| Challenger Nanchang | 2019/04/22 10:00 | Goncalo Oliveira v Maverick Banes | 6-4,6-3 |
| Challenger Anning | 2019/04/20 07:05 | Jay Clarke v Goncalo Oliveira | 6-3,6-2 |
| Challenger Anning | 2019/04/19 04:00 | Goncalo Oliveira v Alex Bolt | 6-7,6-4,6-3 |
| Challenger Anning | 2019/04/18 06:45 | Jason Jung v Goncalo Oliveira | 3-6,6-7 |
| Challenger Anning | 2019/04/16 03:25 | Goncalo Oliveira v Ze Zhang | 7-6,6-3 |
| Challenger Anning | 2019/04/15 06:20 | Zihao Xia v Goncalo Oliveira | 2-6,0-6 |
| Challenger Taipei | 2019/04/08 10:25 | Stephane Robert v Goncalo Oliveira | 6-3,6-4 |
| Challenger Alicante | 2019/04/01 16:30 | Goncalo Oliveira v Lorenzo Giustino | 6-3,4-6,3-6 |