| Challenger Monterrey | 2020/03/02 17:25 | Julian Lenz v Aleksandar Vukic | 3-6,3-6 |
| Challenger Calgary | 2020/02/27 18:30 | Julian Lenz v Arthur Rinderknech | 7-6,3-6,6-7 |
| Challenger Calgary | 2020/02/26 19:45 | Julian Lenz v Shintaro Imai | 6-3,3-6,7-6 |
| Challenger Koblenz | 2020/02/18 14:15 | Julian Lenz v Maximilian Marterer | 1-6,3-6 |
| Challenger Launceston | 2020/02/04 04:10 | Julian Lenz v Benjamin Lock | 2-6,7-5,6-7 |
| Challenger Burnie | 2020/01/28 01:30 | Julian Lenz v Blaz Kavcic | 4-6,4-6 |
| Australian Open | 2020/01/14 01:55 | Pedro Martinez v Julian Lenz | 6-0,6-1 |
| Challenger Ortisei | 2019/11/11 14:45 | Julian Lenz v Daniel Masur | 6-7,6-4,3-6 |
| Challenger Indian Wells | 2020/03/04 20:10 | Mischa Zverev v Gregoire Barrere | 3-6,6-3,5-7 |
| Challenger Indian Wells | 2020/03/02 22:45 | Mischa Zverev v JC Aragone | 5-7,6-0,7-6 |
| ATP Acapulco | 2020/02/26 03:00 | John Isner v Mischa Zverev | 6-3,7-6 |
| Challenger Cherbourg | 2020/02/15 15:00 | Mischa Zverev v Roberto Marcora | 4-6,6-4,6-7 |
| Challenger Cherbourg | 2020/02/14 17:15 | Mirza Basic v Mischa Zverev | 4-6,4-6 |
| Challenger Cherbourg | 2020/02/13 22:10 | Ruben Bemelmans v Mischa Zverev | 2-6,4-6 |
| Challenger Cherbourg | 2020/02/12 19:50 | Mischa Zverev v Marco Trungelliti | 6-0,6-4 |
| Challenger Cherbourg | 2020/02/10 11:15 | Mischa Zverev v Vit Kopriva | 6-2,7-5 |