Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/30 08:30 | Sandro Kopp v Alec Deckers | 6-4,3-6,6-4 |
| ITF M15 Heraklion | 2021/11/23 07:00 | Alec Deckers v Alexandros Skorilas | 6-4,6-7,8-10 |
| ITF M15 Heraklion | 2021/11/22 08:00 | Alec Deckers v Dennis Dragomirov | 6-2,6-2 |
| ITF M15 Heraklion | 2021/11/21 11:00 | Alec Deckers v James Markiewicz | 6-4,6-4 |
| ITF M15 Heraklion | 2021/11/17 07:00 | Alec Deckers v Lukas Krainer | 5-7,6-7 |
| ITF M15 Heraklion | 2021/11/12 08:00 | Alastair Gray v Alec Deckers | 6-3,6-4 |
| ITF M15 Heraklion | 2021/11/11 07:00 | Guy Den Heijer v Alec Deckers | 4-6,6-7 |
| ITF M15 Heraklion | 2021/11/10 10:00 | Zsombor Velcz v Alec Deckers | 6-3,0-6,4-6 |
| ITF M15 Lambare | 2021/12/15 14:30 | Caio Gruber v Miguel Fernando Pereira | 1-6,0-6 |
| ITF M25 Aparecida De Goiania | 2021/11/11 19:40 | Caio Gruber v Oscar Jose Gutierrez | 1-6,3-6 |
| ITF M25 Aparecida De Goiania | 2021/11/10 15:00 | Hernando J E Isnardi v Caio Gruber | 2-6,6-3,4-6 |
| ITF M25 Aparecida De Goiania | 2021/11/08 14:30 | Caio Gruber v Leonardo Bastos | 6-1,6-3 |
| ITF M25 Aparecida De Goiania | 2021/11/07 14:00 | Caio Gruber v Victor Bini | 6-3,4-6,10-2 |
| ITF M15 Brasilia | 2021/11/01 14:30 | Caio Gruber v Luis Rodrigues Batista | 6-7,4-6 |
| ITF M25 Rio do Sul | 2021/10/20 16:30 | Nicolas Zanellato v Caio Gruber | 6-2,6-1 |
| ITF M25 Rio do Sul | 2021/10/18 17:35 | Caio Gruber v Gustavo Tedesco | 6-3,6-3 |