Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Loule | 2021/10/12 13:00 | Tiago Cacao v Luis Faria | 3-6,6-4,0-6 |
| ITF - M25 Setubal | 2021/10/06 12:20 | Tiago Cacao v Maximilian Neuchrist | 6-7,0-6 |
| Challenger - Lisabon | 2021/09/28 15:55 | Joao Domingues v Tiago Cacao | 6-4,6-4 |
| Challenger - Braga | 2021/09/22 12:00 | Thiago Monteiro v Tiago Cacao | 6-1,6-1 |
| Challenger - Braga | 2021/09/20 11:30 | Tiago Cacao v Roberto Ortega-Olmedo | 4-6,6-1,6-1 |
| ITF - M25 Sintra | 2021/09/14 17:35 | Alejandro Moro Canas v Tiago Cacao | 6-1,7-5 |
| Challenger - Praha | 2021/08/23 11:00 | Tiago Cacao v Facundo Diaz Acosta | 4-6,0-6 |
| Challenger - Praha | 2021/08/22 10:15 | Teymuraz Gabashvili v Tiago Cacao | 2-6,2-6 |
| ITF - M25 Loule | 2021/10/15 11:50 | Pedro Araujo v Arthur Cazaux | 6-1,6-4 |
| ITF - M25 Loule | 2021/10/14 09:30 | Elliot Benchetrit v Arthur Cazaux | 6-0,6-7,0-6 |
| ITF - M25 Loule | 2021/10/13 09:30 | Amaury Raynel v Arthur Cazaux | 2-6,1-6 |
| ITF - M25 Setubal | 2021/10/10 09:55 | Arthur Cazaux v Rinky Hijikata | 7-5,6-0 |
| ITF - M25 Setubal | 2021/10/09 12:00 | Arthur Cazaux v Laurent Lokoli | 6-2,6-4 |
| ITF - M25 Setubal | 2021/10/08 12:05 | Arthur Cazaux v Sebastian Fanselow | 3-6,6-3,6-3 |
| ITF - M25 Setubal | 2021/10/07 11:40 | Pedro Araujo v Arthur Cazaux | 6-7,6-4,1-6 |
| ITF - M25 Setubal | 2021/10/06 15:05 | Luis Faria v Arthur Cazaux | 5-7,3-6 |