Germany - 3 May 2021 - 4 May 2021
The winners of this round are qualified
| 3rd May - 08h35 |  Carlos Mühlbach | def. | Henning Zeptner | 3-0 (11-7, 11-8, 11-3) |
| 3rd May - 09h10 | Florian Bluhm | def. | Marius Henninger | 3-1 (8-11, 11-9, 11-1, 11-4) |
| 3rd May - 09h50 | Christian Tomsic | def. | Andrew Schonhaar | 3-2 (8-11, 11-5, 11-6, 10-12, 17-15) |
| 3rd May - 10h30 |  Enio Mendes | def. |  Irvin Bertrand | 3-0 (11-6, 11-7, 16-14) |
| 3rd May - 11h10 | Florian Bluhm | def. | Henning Zeptner | 3-0 (11-8, 11-5, 11-8) |
| 3rd May - 11h50 | Marius Henninger | def. | Andrew Schonhaar | 3-0 (12-10, 11-8, 11-9) |
| 3rd May - 12h30 | Enio Mendes | def. | Christian Tomsic | 3-0 (11-5, 11-5, 11-6) |
| 3rd May - 13h10 | Irvin Bertrand | def. | Carlos Mühlbach | 3-2 (11-8, 8-11, 7-11, 11-7, 11-7) |
| 3rd May - 13h50 | Henning Zeptner | def. | Andrew Schonhaar | 3-1 (11-7, 5-11, 14-12, 12-10) |
| 3rd May - 14h30 | Carlos Mühlbach | def. | Florian Bluhm | 3-0 (11-8, 11-6, 11-6) |
| 3rd May - 16h00 | Irvin Bertrand | def. | Christian Tomsic | 3-0 (11-5, 11-6, 11-1) |
| 3rd May - 16h40 | Enio Mendes | def. | Marius Henninger | 3-0 (11-5, 11-5, 11-8) |
| 3rd May - 17h20 | Florian Bluhm | def. | Andrew Schonhaar | 3-0 (11-0, 11-1, 11-5) |
| 3rd May - 18h00 | Carlos Mühlbach | def. | Christian Tomsic | 3-0 (11-7, 11-8, 11-5) |
| 3rd May - 18h40 | Irvin Bertrand | def. | Marius Henninger | 3-1 (11-6, 11-8, 9-11, 11-5) |
| 3rd May - 19h20 | Enio Mendes | def. | Henning Zeptner | 3-0 (11-7, 12-10, 11-1) |
| 3rd May - 20h00 | Carlos Mühlbach | def. | Andrew Schonhaar | 3-0 (11-4, 11-8, 11-7) |
| 3rd May - 20h40 | Irvin Bertrand | def. | Henning Zeptner | 3-0 (11-8, 11-5, 11-9) |
| 3rd May - 21h20 | Marius Henninger | def. | Christian Tomsic | 3-0 (11-2, 11-4, 11-3) |
| 3rd May - 22h00 | Florian Bluhm | def. | Enio Mendes | 3-2 (4-11, 5-11, 11-7, 12-10, 20-18) |
| 4th May - 09h40 | Henning Zeptner | def. | Christian Tomsic | 3-0 (11-7, 11-2, 11-6) |
| 4th May - 11h00 | Florian Bluhm | def. | Irvin Bertrand | 3-2 (7-11, 11-13, 11-8, 11-8, 11-6) |
| 4th May - 11h40 | Carlos Mühlbach | def. | Marius Henninger | 3-1 (11-1, 11-4, 11-13, 11-7) |
| 4th May - 12h20 | Enio Mendes | def. | Andrew Schonhaar | 3-0 (11-6, 11-7, 11-3) |
| 4th May - 13h00 | Henning Zeptner | def. | Marius Henninger | 3-2 (6-11, 5-11, 11-2, 11-9, 11-9) |
| 4th May - 13h40 | Florian Bluhm | def. | Christian Tomsic | 3-0 (11-5, 11-3, 11-8) |
| 4th May - 14h35 | Irvin Bertrand | def. | Andrew Schonhaar | 3-1 (7-11, 11-3, 11-3, 11-8) |
| 4th May - 16h40 | Enio Mendes | def. | Carlos Mühlbach | 3-2 (8-11, 11-7, 8-11, 11-9, 13-11) |
Classification
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