| Date | R | HEIM v AUSWÄRTS | - |
|---|---|---|---|
| 12/17 07:00 | 62 | Hien Q H Pham v Ruben Hartig | 6-4,7-6 |
| 12/10 07:00 | 62 | Pablo Roche Alcaya v Ruben Hartig | 7-6,6-3 |
| 04/17 12:15 | 62 | Marlon Vankan v Ruben Hartig | 6-3,6-3 |
| 04/16 07:00 | 62 | Ruben Hartig v Pavel Gula | 6-1,6-3 |
| 04/09 06:30 | 62 | Ruben Hartig v Atakan Karahan | 1-6,6-3,6-10 |
| 04/03 11:10 | 62 | Ruben Hartig v Yuquan Jin | 3-6,2-6 |
| 04/02 07:00 | 62 | Elio Jose Ribeiro Lago v Ruben Hartig | 6-2,4-6,3-10 |