Stadium: Court 1 Round: 24 Ground: Clay
| Challenger Koblenz | 2019/01/15 16:50 | Adam Pavlasek v Tak Khunn Wang | 3-6,6-3,6-4 |
| Challenger Taipei | 2019/04/10 04:40 | Maxime Janvier v Tak Khunn Wang | 6-4,7-5 |
| Challenger Taipei | 2019/04/08 11:50 | Illya Marchenko v Tak Khunn Wang | 6-4,3-6,4-6 |
| Challenger Zhangjiagang | 2019/03/18 03:10 | Zihao Xia v Tak Khunn Wang | 1-6,7-6,6-3 |
| Challenger Yokohama | 2019/02/26 04:25 | Tak Khunn Wang v Mats Moraing | 6-7,2-6 |
| Challenger Yokohama | 2019/02/25 05:15 | Shinji Hazawa v Tak Khunn Wang | 6-7,4-6 |
| Challenger Morelos | 2019/02/18 18:55 | Michael Redlicki v Tak Khunn Wang | 4-6,6-2,7-5 |
| Challenger Cherbourg | 2019/02/11 15:55 | Tak Khunn Wang v Baptiste Crepatte | 6-7,4-6 |
| Challenger Budapest | 2019/02/04 10:55 | Baptiste Crepatte v Tak Khunn Wang | 6-3,7-5 |
| Challenger Nanchang | 2019/04/25 03:00 | Adam Pavlasek v Andrew Harris | 3-6,6-4,3-6 |
| Challenger Nanchang | 2019/04/23 05:55 | Adam Pavlasek v Yunseong Chung | 6-3,6-2 |
| Challenger Anning | 2019/04/18 05:50 | Adam Pavlasek v Prajnesh Gunneswaran | 5-7,3-6 |
| Challenger Alicante | 2019/04/02 15:20 | Adam Pavlasek v Pedro Martinez | 5-7,7-6,4-6 |
| Challenger Alicante | 2019/04/01 12:00 | David Perez Sanz v Adam Pavlasek | 0-6,5-7 |
| Challenger Marbella | 2019/03/25 09:00 | Adam Pavlasek v Bernabe Zapata Miralles | 3-6,6-3,6-7 |
| Challenger Lille | 2019/03/21 09:30 | Adam Pavlasek v Sebastian Ofner | 3-6,2-6 |
| Challenger Lille | 2019/03/19 17:50 | Guillermo Garcia-Lopez v Adam Pavlasek | 5-7,6-7 |