Stadium: Court 8 Round: 27 Ground: Clay
| ITF M25 Alkmaar | 2021/06/24 15:00 | Nicolas Alvarez Varona v Carlos Lopez Montagud | 5-7,6-3,6-2 |
| ITF M25 Alkmaar | 2021/06/23 15:05 | Jesper De Jong v Nicolas Alvarez Varona | 4-6,6-4,4-6 |
| ITF M15 Heraklion | 2021/06/10 09:25 | Nicolas Alvarez Varona v Roman Andres Burruchaga | 7-6,2-6,1-6 |
| ITF M15 Heraklion | 2021/06/09 06:30 | Nicolas Alvarez Varona v Eduardo Cohen | 6-2,6-2 |
| ITF M15 Heraklion | 2021/06/05 08:10 | Ben Patael v Nicolas Alvarez Varona | 7-5,6-2 |
| ITF M15 Heraklion | 2021/06/04 06:25 | Nicolas Alvarez Varona v Ugo Blanchet | 6-1,7-5 |
| ITF M15 Heraklion | 2021/06/03 09:30 | Nicolas Alvarez Varona v Martin Breysach | 6-3,6-3 |
| ITF M15 Heraklion | 2021/06/02 13:50 | Nicolas Alvarez Varona v Matteo De Vincentis | 6-4,6-2 |
| ITF M25 Alkmaar | 2021/06/24 09:00 | Deney Wassermann v Marvin Moeller | 6-7,7-6,3-6 |
| 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 |