Stadium: Court Lisboa Round: 164 Ground: Clay
| Challenger Lisbon | 2020/10/10 11:30 | Guilherme Clezar v Joao Monteiro | 6-7,6-4,6-1 |
| Challenger Barcelona | 2020/10/03 13:10 | Brandon Nakashima v Guilherme Clezar | 6-2,6-2 |
| Challenger Split | 2020/09/27 08:00 | Guilherme Clezar v Tomas Barrios Vera | 2-6,3-6 |
| Challenger Split | 2020/09/26 13:55 | Guilherme Clezar v Duje Kekez | 6-2,6-3 |
| Challenger Forli | 2020/09/24 09:55 | Guilherme Clezar v Andrea Pellegrino | 4-6,2-6 |
| Challenger Forli | 2020/09/23 10:45 | Federico Coria v Guilherme Clezar | 6-7,7-6,4-6 |
| Challenger Forli | 2020/09/21 08:00 | Guilherme Clezar v Matthias Bachinger | 7-6,3-6,6-3 |
| ITF M25 Plaisir | 2020/09/18 11:00 | Igor Sijsling v Guilherme Clezar | 6-4,6-4 |
| Challenger Lisbon | 2020/10/10 09:00 | Orlando Luz v Viktor Galovic | 6-4,4-6,6-4 |
| Challenger Split | 2020/09/27 08:00 | Malek Jaziri v Orlando Luz | 6-2,4-6,6-4 |
| Challenger Split | 2020/09/26 14:00 | Orlando Luz v Dimitar Kuzmanov | 6-2,6-4 |
| Challenger Sibiu | 2020/09/23 10:25 | Malek Jaziri v Orlando Luz | 6-3,7-6 |
| Challenger Sibiu | 2020/09/22 12:00 | Orlando Luz v Victor Vlad Cornea | 6-1,3-6,6-2 |
| ITF M25 Plaisir | 2020/09/15 08:30 | Orlando Luz v Michael Geerts | 4-6,4-6 |
| Challenger Monterrey | 2020/03/02 18:25 | Orlando Luz v Christopher Eubanks | 6-7,6-3,5-7 |
| ATP Santiago | 2020/02/23 15:00 | Martin Klizan v Orlando Luz | 6-4,6-1 |