Stadium: Central Round: 26 Ground: Hardcourt indoor
| Challenger Pau | 2020/02/25 15:40 | Maxime Janvier v Jerzy Janowicz | 4-6,4-6 |
| Challenger Pau | 2020/02/24 16:35 | Zdenek Kolar v Jerzy Janowicz | 4-6,5-7 |
| Challenger Quimper | 2020/01/27 19:15 | Jerzy Janowicz v Evan Furness | 6-3,6-4 |
| Challenger Rennes | 2020/01/22 13:00 | Jerzy Janowicz v Constant Lestienne | 6-7,4-6 |
| Challenger Rennes | 2020/01/20 18:15 | Tomas Machac v Jerzy Janowicz | 6-7,7-6,4-6 |
| Challenger Bratislava | 2017/11/08 18:35 | Bernard Tomic v Jerzy Janowicz | 6-7,6-7 |
| Challenger Bratislava | 2017/11/07 17:10 | Jerzy Janowicz v Norbert Gombos | 3-6,7-5,7-6 |
| Challenger Eckental | 2017/11/05 13:00 | Jerzy Janowicz v Maximilian Marterer | 6-7,6-3,3-6 |
| Challenger Pau | 2020/02/25 19:50 | Borna Gojo v Lorenzo Giustino | 6-7,6-7 |
| Challenger Bergamo | 2020/02/20 10:20 | Lorenzo Giustino v Hugo Gaston | 3-6,6-3,4-6 |
| Challenger Bergamo | 2020/02/18 19:55 | Lorenzo Giustino v Nino Serdarusic | 6-7,6-3,7-6 |
| Challenger Launceston | 2020/02/07 02:10 | Lorenzo Giustino v Kimmer Coppejans | 6-7,7-5,4-6 |
| Challenger Launceston | 2020/02/06 03:40 | Lorenzo Giustino v Dane Sweeny | 6-2,6-3 |
| Challenger Launceston | 2020/02/04 23:00 | Lorenzo Giustino v Blaz Kavcic | 0-6,7-5,7-6 |
| Challenger Burnie | 2020/01/30 01:30 | Lorenzo Giustino v Zhe Li | 4-6,2-6 |
| Challenger Burnie | 2020/01/28 03:00 | Lorenzo Giustino v Andrea Vavassori | 6-3,6-3 |