Stadium: CENTRAL Round: 26 Ground: Clay
| ITF Brazil F4 Qual | 2018/05/14 13:00 | Fernando Yamacita v Mori Filho, Valter | 6-2,6-1 |
| ITF Brazil F3 | 2018/05/08 13:00 | Tsuchiya, Alexandre v Fernando Yamacita | 6-3,4-6,6-2 |
| ITF Brazil F3 | 2018/05/07 18:00 | Fernando Yamacita v Eduardo Ribeiro | 6-4,7-6 |
| ITF Brazil F3 | 2018/05/06 12:30 | Fernando Yamacita v Ferrari Maciel, Pedro | 6-7,6-4,6-3 |
| ITF Brazil F2 | 2018/05/01 15:00 | Oscar Jose Gutierrez v Fernando Yamacita | 6-4,6-0 |
| ITF Brazil F2 | 2018/04/30 15:00 | Fernando Yamacita v Luis Britto | 6-1,6-2 |
| ITF Brazil F2 | 2018/04/29 17:30 | Fernando Yamacita v Ferrari Maciel, Pedro | 6-2,6-3 |
| ITF Brazil F1 | 2018/04/24 18:30 | Tsuchiya, Alexandre v Fernando Yamacita | 6-4,6-2 |
| ITF Brazil F4 | 2018/05/14 19:10 | Ribeiro Marcondes, Igor v Tsuchiya, Alexandre | 4-6,6-2,6-3 |
| ITF Brazil F3 | 2018/05/08 17:10 | Oliveira, Cristian v Ribeiro Marcondes, Igor | 6-2,6-2 |
| ITF Brazil F2 | 2018/05/05 16:00 | Ribeiro Marcondes, Igor v Matos, Rafael | 4-6,4-6 |
| ITF Brazil F2 | 2018/05/04 15:00 | Schmid, Aaron v Ribeiro Marcondes, Igor | 6-7,3-6 |
| ITF Brazil F2 | 2018/05/02 15:00 | Tsuchiya, Alexandre v Ribeiro Marcondes, Igor | 7-5,5-7,3-6 |
| ITF Brazil F2 | 2018/04/30 15:00 | Ribeiro Marcondes, Igor v Jose Pereira | 6-4,7-6 |
| ITF Brazil F1 | 2018/04/23 19:15 | Ribeiro Marcondes, Igor v Oscar Jose Gutierrez | 6-2,2-6,3-6 |
| ITF Egypt F13 | 2018/04/11 09:25 | Ribeiro Marcondes, Igor v Vernier, Michel | 3-6,6-7 |