Round: 44 Ground: Hardcourt outdoor
| ITF Portugal F5 | 2017/04/01 14:00 | Lourenco, Diogo v Prokopchuk, Alexey | 2-6,2-6 |
| Portugal F4, Singles Qualifying | 2017/03/27 13:00 | Cabral, Francisco v Lourenco, Diogo | 7-6,7-6 |
| Portugal F4, Singles Qualifying | 2017/03/26 10:30 | Lourenco, Diogo v Ho, Jonathan | 6-3,6-4 |
| ITF Portugal F3 Qual | 2017/03/12 16:00 | Billy Harris v Lourenco, Diogo | 6-1,6-4 |
| ITF Portugal F3 Qual | 2017/03/12 10:00 | Lourenco, Diogo v Dugo Reyes, Jose Antonio | 6-3,6-1 |
| ITF Portugal F3 Qual | 2017/03/11 13:00 | Lourenco, Diogo v Ringdal Noerstenaes, Karl Adrian | 7-6,6-1 |
| ITF Portugal F2 | 2017/03/05 10:00 | Lourenco, Diogo v Gomar Monio, Luis | 6-7,6-0,4-6 |
| ITF Portugal F2 | 2017/03/04 09:30 | Stijn Slump v Lourenco, Diogo | 6-2,1-6,6-7 |
| ITF Portugal F5 | 2017/04/05 11:10 | Maciej Rajski v Vanneste, Jeroen | 4-6,3-6 |
| ITF Portugal F5 | 2017/04/03 11:00 | Maciej Rajski v Goncalo Falcao | 6-2,6-1 |
| ITF Portugal F5 | 2017/04/02 09:30 | Maciej Rajski v von Hafe Perez, Jose | 6-2,6-1 |
| ITF Croatia F2 | 2017/03/11 08:00 | Marco Miceli v Maciej Rajski | 6-7,6-4,6-3 |
| ITF Croatia F1 | 2017/03/09 11:05 | Maciej Rajski v Zdenek Kolar | 6-4,3-6,2-6 |
| ITF Croatia F1 | 2017/03/08 12:20 | Maciej Rajski v Prechtel, Sebastian | 6-1,6-0 |
| ITF Croatia F1 | 2017/03/06 13:30 | Maciej Rajski v Fetisleam, Edris | 7-6,6-3 |
| ITF Croatia F1 | 2017/03/05 08:00 | Maciej Rajski v Bojanovic, Darko | 7-6,6-1 |