Stadium: Centre Court Round: 26 Ground: Clay
| ITF M25 Alkmaar | 2021/06/23 10:35 | Deney Wassermann v Guy Den Ouden | 7-6,7-5 |
| ITF M25 Alkmaar | 2021/06/21 16:00 | Kai Wehnelt v Deney Wassermann | 5-7,6-3,12-10 |
| ITF M25 Alkmaar | 2021/06/20 18:00 | Deney Wassermann v Niels Visker | 7-6,6-7,10-6 |
| ITF M15 Antalya | 2021/04/05 07:00 | Deney Wassermann v Sidane Pontjodikromo | 4-6,2-6 |
| ITF M15 Antalya | 2021/04/04 06:30 | Deney Wassermann v Egor Matvievici | 6-3,6-1 |
| ITF M15 Antalya | 2021/03/30 07:00 | Paul Woerner v Deney Wassermann | 6-1,6-4 |
| ITF M15 Antalya | 2021/03/29 07:00 | Mert Arabaci v Deney Wassermann | 1-6,1-6 |
| ITF M15 Antalya | 2021/03/28 06:30 | Deney Wassermann v Marlon Vankan | 6-1,6-4 |
| ITF M25 Alkmaar | 2021/06/23 10:55 | Marvin Moeller v Jeremy Jahn | 6-2,6-0 |
| ITF M25 Alkmaar | 2021/06/21 17:30 | Marvin Moeller v Michiel de Krom | 2-6,6-4,10-3 |
| ITF M25 Alkmaar | 2021/06/20 11:00 | Marvin Moeller v Max Wiskandt | 7-6,6-3 |
| ITF M15 Heraklion | 2021/06/09 11:45 | Marvin Moeller v William Griffith | 4-6,4-6 |
| ITF M15 Heraklion | 2021/06/02 10:55 | Marvin Moeller v Antonio Cayetano March | 3-6,6-7 |
| ITF M15 Sibenik | 2021/04/20 11:05 | Marvin Moeller v Sean Cuenin | 6-2,6-7,2-6 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Tak Khunn Wang v Marvin Moeller | 6-4,6-3 |
| ITF M25 Biel | 2021/03/29 12:05 | Yann Marti v Marvin Moeller | 6-4,6-7,10-5 |