Stadium: COURT QDL Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Faro | 2020/03/08 16:00 | Sebastian Fanselow v Tiago Cacao | 6-3,6-3 |
| ITF M25 - Vale Do Lobo | 2020/10/28 15:05 | Sebastian Fanselow v Kacper Zuk | 4-6,5-7 |
| ITF M25 - Rodez | 2020/10/14 17:50 | Antoine Cornut-Chauvinc v Sebastian Fanselow | 6-4,6-3 |
| ITF M15 - Setubal | 2020/10/11 09:30 | Sebastian Fanselow v Nuno Borges | 6-4,7-6 |
| ITF M15 - Setubal | 2020/10/10 09:30 | Sebastian Fanselow v Mateus Alves | 6-3,4-6,6-4 |
| ITF M15 - Setubal | 2020/10/09 11:50 | Joao Lucas Reis da Silva v Sebastian Fanselow | 6-7,3-6 |
| ITF M15 - Setubal | 2020/10/08 11:40 | Evan Furness v Sebastian Fanselow | 3-6,6-3,3-6 |
| ITF M15 - Setubal | 2020/10/06 11:25 | Sebastian Fanselow v Camilo Ugo Carabelli | 6-3,3-6,6-3 |
| ITF M15 - Castelo Branco | 2020/09/24 16:05 | Riccardo Balzerani v Sebastian Fanselow | 7-6,2-6,6-4 |
| ITF M25 - Vale Do Lobo | 2020/10/29 12:30 | Gastao Elias v Tiago Cacao | 6-1,6-4 |
| ITF M25 - Vale Do Lobo | 2020/10/27 12:00 | Tiago Cacao v Viktor Durasovic | 4-6,6-3,6-3 |
| Challenger Lissabon | 2020/10/10 14:25 | Tiago Cacao v Borna Gojo | 3-6,2-6 |
| ITF M15 - Setubal | 2020/10/06 11:00 | Lucas Gerch v Tiago Cacao | 6-1,6-4 |
| ITF M25 - Porto | 2020/10/03 09:00 | Tiago Cacao v Nuno Borges | 4-6,7-6,0-6 |
| ITF M25 - Porto | 2020/10/01 11:30 | Dan Added v Tiago Cacao | 6-7,6-7 |
| ITF M25 - Porto | 2020/09/30 12:00 | Joao Monteiro v Tiago Cacao | 7-6,2-6,0-6 |
| ITF M15 - Castelo Branco | 2020/09/25 10:20 | Tiago Cacao v Nicolas Alvarez Varona | 1-6,4-6 |