Stadium: Court 11 Round: 62
| ITF Argentina F3 | 2018/05/26 12:00 | Gabriel P Tumasonis v Bruno Caula | 1-6,3-6 |
| ITF Argentina F2 | 2018/05/21 13:00 | Gabriel P Tumasonis v Juan M G Paiva | 1-6,6-7 |
| ITF Argentina F2 | 2018/05/20 13:00 | Alan Kohen v Gabriel P Tumasonis | 4-6,6-7 |
| ITF Argentina F2 | 2018/05/19 12:00 | Nicolas Zaidman v Gabriel P Tumasonis | 4-6,1-6 |
| ITF Brazil F4 Qual | 2018/05/14 14:40 | Igor Gimenez v Gabriel P Tumasonis | 6-4,6-1 |
| ITF Brazil F4 Qual | 2018/05/13 12:00 | Gabriel P Tumasonis v Francisco Llanes | 7-6,6-3 |
| ITF Brazil F4 Qual | 2018/05/12 12:00 | Gabriel P Tumasonis v Leonardo S Frederico | 6-1,6-0 |
| ITF Brazil F3 | 2018/05/06 12:30 | Gabriel P Tumasonis v Francisco Comesana | 3-6,7-5,5-7 |
| ITF Portugal F14 | 2018/08/09 10:30 | Yannick Jankovits v Miguel Semedo | 6-1,6-1 |
| ITF Portugal F14 | 2018/08/07 13:00 | Alexis Canter v Miguel Semedo | 5-7,0-6 |
| ITF Portugal F14 | 2018/08/06 08:30 | Miguel Semedo v Terence Das | 7-5,1-6,1-6 |
| ITF Portugal F13 | 2018/07/31 10:00 | Miguel Semedo v Rafael Mazon-Hernandez | 2-6,7-6,5-7 |
| ITF Portugal F12 Qual | 2018/07/22 10:30 | Miguel Semedo v Edoardo Graziani | 2-6,0-6 |
| ITF Portugal F12 Qual | 2018/07/21 12:00 | Miguel Semedo v Sean Collins | 6-1,1-6,6-2 |
| ITF Portugal F11 Qual | 2018/07/02 08:30 | Miguel Semedo v Emilio Andrea Segarelli | 3-6,4-6 |
| ITF Portugal F10 | 2018/06/25 09:30 | Miguel Semedo v Pedro Araujo | 3-6,5-7 |