Stadium: Center Round: 25 Ground: Hardcourt outdoor
| Challenger Bergamo | 2019/02/21 13:00 | Jannik Sinner v Viktor Galovic | 7-5,1-6,6-4 |
| Challenger Bergamo | 2019/02/19 16:40 | Viktor Galovic v Daniel Brands | 7-5,7-6 |
| Challenger Bergamo | 2019/02/18 18:00 | Viktor Galovic v Giulio Zeppieri | 4-6,6-3,6-4 |
| Challenger Cherbourg | 2019/02/13 12:00 | Mats Moraing v Viktor Galovic | 6-4,3-6,6-1 |
| Challenger Cherbourg | 2019/02/11 16:55 | Viktor Galovic v Daniel Masur | 6-2,7-5 |
| Challenger Budapest | 2019/02/08 18:45 | Alexander Bublik v Viktor Galovic | 3-6,6-3,6-4 |
| Challenger Budapest | 2019/02/07 11:45 | Viktor Galovic v Bernabe Zapata Miralles | 7-6,5-7,6-2 |
| Challenger Budapest | 2019/02/05 14:35 | Viktor Galovic v Sadio Doumbia | 7-6,6-2 |
| Challenger Zhuhai | 2019/03/05 03:45 | Yunseong Chung v Harri Heliovaara | 7-5,6-2 |
| Challenger Yokohama | 2019/02/25 02:40 | Yunseong Chung v Tsung-Hua Yang | 4-6,3-6 |
| Challenger Bangkok 1A | 2019/02/19 03:00 | Gianluca Mager v Yunseong Chung | 6-4,6-4 |
| Challenger Bangkok 1A | 2019/02/18 05:20 | Yunseong Chung v Pedro Cachin | 6-2,6-1 |
| Challenger Launceston | 2019/01/30 02:40 | Yunseong Chung v Lorenzo Giustino | 3-6,7-6,3-6 |
| Challenger Launceston | 2019/01/28 05:55 | Yunseong Chung v Rubin Statham | 6-4,6-3 |
| Challenger Burnie | 2019/01/21 23:00 | Yunseong Chung v Lorenzo Giustino | 2-6,3-6 |
| Challenger Burnie | 2019/01/21 00:30 | Jordi Samper-Montana v Yunseong Chung | 5-7,1-6 |