Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF Portugal F13 | 2018/07/29 13:30 | Egill Sigurdsson v Guilherme Valdoleiros | 6-3,5-7,6-2 |
| ITF Portugal F12 Qual | 2018/07/21 12:00 | Jose Von Hafe Perez v Guilherme Valdoleiros | 6-2,6-3 |
| ITF Portugal F11 Qual | 2018/07/02 11:00 | Ben Jones v Guilherme Valdoleiros | 6-0,6-2 |
| ITF Portugal F11 Qual | 2018/07/01 09:00 | Eduardo Morais v Guilherme Valdoleiros | 3-6,2-6 |
| ITF Portugal F10 | 2018/06/23 12:00 | Miguel Semedo v Guilherme Valdoleiros | 6-3,6-4 |
| ITF Portugal F9 | 2018/06/16 11:30 | Pedro Gabriel Rodrigues v Guilherme Valdoleiros | 7-6,6-3 |
| ITF Portugal F21 | 2017/10/02 10:00 | Ivan Marrero Curbelo v Guilherme Valdoleiros | 6-1,6-2 |
| ITF Portugal F21 | 2017/10/01 09:00 | Guilherme Valdoleiros v Nathan Lavanchy | 4-6,6-2,6-3 |
| ITF M25 Idanha-A-Nova | 2021/07/11 10:30 | Osgar O'Hoisin v Martin Breysach | 6-4,6-4 |
| ITF M25 Bakio | 2021/06/30 08:30 | Osgar O'Hoisin v Kaichi Uchida | 3-6,5-7 |
| ITF M25 Bakio | 2021/06/29 08:00 | Marco Brugnerotto v Osgar O'Hoisin | 2-6,6-4,8-10 |
| ITF M25 Bakio | 2021/06/27 15:40 | Antonio Prat v Osgar O'Hoisin | 2-6,2-6 |
| Davis Cup | 2021/06/19 08:00 | Aleksandre Bakshi v Osgar O'Hoisin | 6-4,6-3 |
| Davis Cup | 2021/06/18 09:20 | Osgar O'Hoisin v Liam Delicata | 6-4,6-2 |
| Davis Cup | 2021/06/17 07:50 | Valentin Vacherot v Osgar O'Hoisin | 6-3,6-4 |
| Davis Cup | 2021/06/16 08:00 | Chris Rodesch v Osgar O'Hoisin | 3-6,6-0,6-2 |