Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Oeiras | 2021/05/24 11:50 | Tiago Cacao v Tung-Lin Wu | 1-6,1-6 |
| Challenger Oeiras | 2021/05/16 14:20 | Tiago Cacao v Zizou Bergs | 6-7,4-6 |
| ITF M15 Valldoreix | 2021/05/15 09:00 | Tiago Cacao v Martin Cuevas | 6-3,6-7,4-6 |
| ITF M15 Valldoreix | 2021/05/14 10:35 | Rayane Roumane v Tiago Cacao | 1-6,0-6 |
| ITF M15 Valldoreix | 2021/05/13 08:00 | Tiago Cacao v Martin Damm | 3-6,6-1,6-4 |
| ITF M15 Valldoreix | 2021/05/11 11:00 | Pedro Boscardin Dias v Tiago Cacao | 4-6,2-6 |
| ITF M15 Majadahonda | 2021/05/02 12:00 | Tiago Cacao v Max Houkes | 7-6,3-6,11-13 |
| ITF M15 Antalya | 2021/04/22 07:00 | Tiago Cacao v Oleksandr Ovcharenko | 7-6,1-6,0-6 |
| ITF M15 Monastir | 2021/05/27 10:25 | Lukas Neumayer v Moez Echargui | 6-3,4-6,6-4 |
| ITF M15 Monastir | 2021/05/26 09:30 | Moez Echargui v Yusuke Takahashi | 7-6,0-6,7-6 |
| ITF M15 Monastir | 2021/05/18 10:35 | Moez Echargui v Michel Vernier | 6-4,6-4 |
| ITF M15 Monastir | 2021/02/25 10:55 | Alexis Gautier v Moez Echargui | 6-3,3-6,6-3 |
| ITF M15 Monastir | 2021/02/10 10:45 | Ryota Tanuma v Moez Echargui | 6-7,6-7 |
| ITF M15 Monastir | 2021/02/06 08:30 | Moez Echargui v Stuart Parker | 6-4,1-6,3-6 |
| ITF M15 Monastir | 2021/02/05 08:30 | Raphael Collignon v Moez Echargui | 4-6,5-7 |
| ITF M15 Monastir | 2021/02/04 08:30 | Anis Ghorbel v Moez Echargui | 4-6,7-5,1-6 |