Stadium: Hard Court 3 Round: 44 Ground: Hardcourt outdoor
| German Premier League | 2020/08/05 11:00 | Albano Olivetti v Robert Strombachs | 3-6,6-4,6-4 |
| German Premier League | 2020/08/04 14:40 | Robin Haase v Robert Strombachs | 6-2,6-4 |
| German Premier League | 2020/08/03 10:00 | Mischa Zverev v Robert Strombachs | 3-6,2-6 |
| ITF M15 Heraklion | 2020/03/12 08:30 | Robert Strombachs v Aristotelis Thanos | 2-6,6-3,2-6 |
| ITF M15 Bad Salzdetfurth | 2019/10/11 09:00 | Robert Strombachs v Jan Choinski | 6-3,6-7,2-6 |
| ITF M15 Bad Salzdetfurth | 2019/10/10 10:30 | Robert Strombachs v Leopold Zima | 6-4,5-7,7-6 |
| ITF M15 Bad Salzdetfurth | 2019/10/09 09:00 | Robert Strombachs v Adrian Barbu | 6-3,6-1 |
| ITF M25 Shrewsbury | 2019/09/26 10:30 | Robert Strombachs v Tobias Simon | 3-6,4-6 |
| ITF M15 Heraklion | 2020/03/08 11:00 | Jason Janis v Andrea Del Federico | 1-6,2-6 |
| ITF M15 Heraklion | 2020/03/04 08:25 | Alexandros Skorilas v Jason Janis | 6-1,6-3 |
| ITF M15 Heraklion | 2020/02/26 08:30 | Jason Janis v Hamad Medjedovic | 0-6,2-6 |
| ITF M15 Monastir | 2019/12/03 12:50 | Jason Janis v Jan Satral | 0-6,0-6 |
| ITF M15 Tabarka | 2019/10/29 13:30 | Leonardo Catani v Jason Janis | 6-0,6-0 |
| ITF M15 Tabarka | 2019/10/20 10:00 | Anthony Turchi v Jason Janis | 6-1,6-0 |
| ITF M15 Tabarka | 2019/10/13 08:30 | Ignacio Vinas v Jason Janis | 6-4,6-1 |
| ITF M15 Tabarka | 2019/10/09 14:25 | Jason Janis v Edward Hubner | 0-6,1-6 |