| Date | R | HEIM v AUSWÄRTS | - |
|---|---|---|---|
| 06/27 18:00 | 25 | Juan A H Serrano v Hunter Callahan | 6-2,6-2 |
| 06/15 18:30 | 26 | Hunter Callahan v Kaichi Uchida | 3-6,4-6 |
| 06/15 15:30 | - | Hunter Callahan v Kaichi Uchida | 3-6,4-5 |
| 06/14 16:50 | 25 | Hunter Callahan v Alexandru Gozun | 6-1,7-6 |
| 06/25 16:00 | - | Winston Lin v Hunter Callahan | 6-3,7-5 |
| 06/24 18:35 | - | Jonathan Ho v Hunter Callahan | 3-6,3-6 |
| 06/26 20:00 | - | Hunter Callahan v Ryan Shane | 6-7,0-6 |
| 06/26 15:00 | - | Luke Bambridge v Hunter Callahan | 6-4,4-6,3-6 |
| 06/23 16:00 | - | Hunter Callahan v Catalin Mateas | Retired |