| Date | R | HEIM v AUSWÄRTS | - |
|---|---|---|---|
| 05/21 15:00 | 28 | Farris Fathi Gosea v Naoki Nakagawa | 6-7,7-5,6-4 |
| 05/20 17:00 | 27 | Naoki Nakagawa v Ricardo Hocevar | 6-7,6-3,6-4 |
| 05/19 20:00 | 26 | Ricky Medinilla v Naoki Nakagawa | 3-6,2-6 |
| 05/17 17:10 | 25 | Naoki Nakagawa v Daniel Mora | Retired |
| 05/16 15:00 | 62 | Naoki Nakagawa v Raul-Isaias Rosas-Zarur | 6-4,6-2 |
| 05/14 17:00 | 62 | Stephan Koenigsfest v Naoki Nakagawa | 7-6,6-7,4-6 |