| Date | R | HEIM v AUSWÄRTS | - |
|---|---|---|---|
| 02/08 04:00 | 28 | [251] Daniel Altmaier v Alex Bolt [151] | 1-6,4-6 |
| 02/07 01:00 | 27 | [273] Borna Gojo v Daniel Altmaier [251] | 5-7,4-6 |
| 02/06 01:55 | 26 | [251] Daniel Altmaier v Matias Franco Descotte [372] | 7-5,6-1 |
| 02/04 02:45 | 25 | [249] Viktor Galovic v Daniel Altmaier [251] | 4-6,3-6 |
| 02/03 00:35 | 24 | [392] Brydan Klein v Daniel Altmaier [263] | 5-7,6-7 |
| 01/28 04:35 | 24 | [372] Daniel Altmaier v Yusuke Takahashi [347] | 6-4,4-6,4-6 |
| 02/06 00:35 | 25 | Daniel Altmaier v Tsung-Hua Yang | Retired |