Stadium: Court 1 Round: 25 Ground: Clay
| ITF M25 Vale Do Lobo | 2020/10/27 12:00 | Tiago Cacao v Viktor Durasovic | 4-6,6-3,6-3 |
| Challenger Lisbon | 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 |
| ITF M15 Castelo Branco | 2020/09/24 15:50 | Gonzalo Lama v Tiago Cacao | 3-6,7-6,3-6 |
| ITF M15 Setubal | 2020/10/04 12:00 | Mathys Erhard v Naoki Nakagawa | 6-4,4-6,7-10 |
| ITF M25 Porto | 2020/09/27 15:00 | Jacopo Berrettini v Mathys Erhard | 6-3,1-6,11-9 |
| ITF M25 Plaisir | 2020/09/15 17:35 | Mathys Erhard v Tobias Simon | 6-7,4-6 |
| ITF M15 Toulouse | 2020/03/09 12:10 | Thibault Verdier v Mathys Erhard | 6-3,6-2 |
| ITF M15 Heraklion | 2020/02/24 08:30 | Mathys Erhard v Christos Keisidis | 4-6,6-3,12-14 |
| ITF M15 Heraklion | 2020/02/16 11:00 | Mathys Erhard v Marius Ruzgas | 2-6,6-7 |
| ITF M15 Monastir | 2020/01/27 08:30 | Mathys Erhard v Oscar Galimardanov | 3-6,4-6 |
| ITF M15 Monastir | 2020/01/26 08:00 | Davide Guerra v Mathys Erhard | 0-6,1-6 |