| 1 | 28 Jun 2021 | 09:00 | KOBELT, Nicolas [1] vs FUNK, Aaron | Court 1 |
| 2 | 28 Jun 2021 | 09:00 | POERTNER, Lasse vs BIDNY, Yoni | Court 7 |
| 3 | 28 Jun 2021 | 10:00 | MALKIN, Michael vs LEY, Dorian | Court 4 |
| 4 | 28 Jun 2021 | 10:00 | BARSUKOV, Nikolai vs MILEV, Yanaki [8] | Court 3 |
| 5 | 28 Jun 2021 | 09:00 | MARTY, Etienne [2] vs LITZ, Kiano | Court 5 |
| 6 | 28 Jun 2021 | 09:00 | KIRSCHNER, Fynn vs WEINTRAUB, Ben | Court 6 |
| 7 | 28 Jun 2021 | 10:00 | SHIMANOV, Ofek vs NAGEL-HEYER, Karl | Court 7 |
| 8 | 28 Jun 2021 | 09:00 | CAMEHN, Jasper vs SCHOEN, Patrick [7] | Court 8 |
| 9 | 28 Jun 2021 | 10:00 | DAGAN, Adi [3] vs LOFINK, Matias | Court 5 |
| 10 | 28 Jun 2021 | 10:00 | KARSTENS, Bon Lou vs SIMMEN, Janis Raffael | Court 2 |
| 11 | 28 Jun 2021 | 09:00 | DUTINE, Dennis Andre vs MESSA, Thiago Horacio | Court 4 |
| 12 | 28 Jun 2021 | 09:00 | EBERZ, Constantin vs MUJAKIC, Alen [6] | Court 3 |
| 13 | 28 Jun 2021 | 10:00 | MYSLIVEC, Simon [4] vs MASKOW, Lukas | Court 8 |
| 14 | 28 Jun 2021 | 10:00 | STEVEKER, Piet vs VALES, Amit | Court 6 |
| 15 | 28 Jun 2021 | 09:00 | KIMPEL, Victor vs VON MEYENBURG, Ioannis | Court 2 |
| 16 | 28 Jun 2021 | 10:00 | PATEL, Hanu vs OLSSON, Oliver [5] | Court 1 |
| 17 | 28 Jun 2021 | 14:00 | KOBELT, Nicolas [1] vs POERTNER, Lasse | |
| 18 | 28 Jun 2021 | 14:00 | MALKIN, Michael vs MILEV, Yanaki [8] | |
| 19 | 28 Jun 2021 | 14:00 | LITZ, Kiano vs WEINTRAUB, Ben | |
| 20 | 28 Jun 2021 | 14:00 | SHIMANOV, Ofek vs SCHOEN, Patrick [7] | |
| 21 | 28 Jun 2021 | 14:00 | LOFINK, Matias vs KARSTENS, Bon Lou | |
| 22 | 28 Jun 2021 | 14:00 | MESSA, Thiago Horacio vs MUJAKIC, Alen [6] | |
| 23 | 28 Jun 2021 | 14:00 | MASKOW, Lukas vs VALES, Amit | |
| 24 | 28 Jun 2021 | 14:00 | VON MEYENBURG, Ioannis vs OLSSON, Oliver [5] | |
| 25 | 29 Jun 2021 | 12:00 | POERTNER, Lasse vs MILEV, Yanaki [8] | |
| 26 | 29 Jun 2021 | 12:00 | WEINTRAUB, Ben vs SCHOEN, Patrick [7] | |
| 27 | 29 Jun 2021 | 12:00 | KARSTENS, Bon Lou vs MUJAKIC, Alen [6] | |
| 28 | 29 Jun 2021 | 12:00 | MASKOW, Lukas vs OLSSON, Oliver [5] | |
| 29 | 29 Jun 2021 | 14:00 | MILEV, Yanaki [8] - QUALIFIED vs SCHOEN, Patrick [7] - QUALIFIED | |
| 30 | 29 Jun 2021 | 14:00 | MUJAKIC, Alen [6] - QUALIFIED vs MASKOW, Lukas - QUALIFIED | |
| 31 | 29 Jun 2021 | TBA | vs | |
