Stadium: Court 4 Round: 25 Ground: Clay
| 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 Aix en Provence | 2019/05/07 16:25 | Lorenzo Giustino v Viktor Troicki | 6-4,2-6,4-6 |
| ATP Estoril | 2019/04/27 11:00 | Daniel Evans v Lorenzo Giustino | 6-3,7-5 |
| Challenger Tunis | 2019/04/20 13:15 | Pablo Cuevas v Lorenzo Giustino | 6-2,6-4 |
| Challenger Tunis | 2019/04/19 13:20 | Facundo Arguello v Lorenzo Giustino | 6-2,3-6,4-6 |
| Challenger Tunis | 2019/04/18 13:25 | Lorenzo Giustino v Johan Sebastien Tatlot | 6-1,5-7,6-3 |
| Challenger Tunis | 2019/04/16 10:35 | Lorenzo Giustino v Zdenek Kolar | 6-1,6-3 |
| Challenger Barletta | 2019/04/11 11:30 | Jacopo Berrettini v Lorenzo Giustino | 4-6,7-6,6-4 |
| Challenger Alicante | 2019/04/03 08:00 | Lorenzo Giustino v Elias Ymer | 6-2,4-6,2-6 |