| ITF Portugal F15 | 2018/08/12 08:30 | Quentin Gueydan v Eduardo LDR De Almeida | 6-1,6-3 |
| ITF Portugal F10 | 2018/06/23 09:00 | Antonio Pedro Pragana v Eduardo LDR De Almeida | 6-1,6-4 |
| ITF Portugal F15 | 2018/08/12 11:30 | Preston Brown v Afonso Salgado | 3-6,6-7 |
| ITF Portugal F15 | 2018/08/11 14:00 | Ricardo Brancal v Preston Brown | 6-2,1-6,0-6 |
| ITF Ecuador F2 Qual | 2018/07/28 15:00 | Preston Brown v Juan R Bisono | 2-6,2-6 |
| ITF Ecuador F1 | 2018/07/23 18:00 | Enrique Bogo v Preston Brown | 6-4,7-5 |
| ITF USA F12 | 2018/04/20 17:30 | Preston Brown v Damien Nezar | 6-2,6-1 |
| ITF USA F11 | 2018/04/16 14:00 | Preston Brown v Ronald Hohmann | 6-7,1-6 |
| ITF USA F11 | 2018/04/15 12:00 | Tao Mu v Preston Brown | 6-7,4-6 |
| ITF USA F9 | 2017/02/24 14:00 | Preston Brown v Nebojsa Peric | 6-3,2-6,1-6 |