Round: 44 Ground: Clay
| ITF Brazil F7 | 2018/10/27 14:30 | Obeid, Lucas v Hinsching, Joao | 6-4,3-6,3-6 |
| ITF Bolivia F3 | 2018/09/23 16:30 | Alejandro H Franco v Obeid, Lucas | 6-2,6-3 |
| ITF Bolivia F2 | 2018/09/16 14:00 | Enrique Bogo v Obeid, Lucas | 6-0,6-2 |
| ITF Bolivia F1 | 2018/09/08 14:00 | Obeid, Lucas v van Meter, Joseph W | 2-6,3-6 |
| ITF Brazil F8 | 2018/11/04 15:30 | Gobernate, Asdrubal v Muzzi, Felipe | 6-3,6-1 |
| ITF Brazil F6 | 2018/10/21 15:30 | Juan Manuel Cerundolo v Muzzi, Felipe | 6-4,6-0 |
| ITF Germany F11 | 2018/08/05 08:00 | Heger, Tim v Muzzi, Felipe | 6-0,7-6 |
| ITF Germany F10 Qual | 2018/07/29 13:30 | Muzzi, Felipe v Schmitz, Constantin | 0-6,0-6 |
| ITF Germany F9 | 2018/07/22 08:00 | Muzzi, Felipe v Pfaff, Moritz | 2-6,5-7 |
| ITF Germany F8 Qual | 2018/07/15 10:30 | Muzzi, Felipe v Daljev, Pavle | 1-6,4-6 |
| ITF Brazil F4 Qual | 2018/05/13 12:00 | Muzzi, Felipe v Rafael Tosetto | 1-6,4-6 |
| ITF Brazil F3 | 2018/05/06 12:30 | Costa, Fabio v Muzzi, Felipe | 6-4,7-6 |