Stadium: Centre Court 1 Round: 26 Ground: Clay
| ITF USA F6 | 2018/01/27 15:00 | Fernando Yamacita v Paul Oosterbaan | 6-1,5-7,6-7 |
| ITF USA F5 | 2018/01/24 17:35 | Juan Manuel Benitez Chavarriaga v Fernando Yamacita | 6-4,6-3 |
| ITF USA F5 | 2018/01/21 15:00 | Richard Torres v Fernando Yamacita | 4-6,7-6,0-6 |
| ITF USA F5 | 2018/01/20 14:00 | Bradley Frye v Fernando Yamacita | 4-6,6-7 |
| ITF USA F5 | 2018/01/19 19:00 | Eric Talac v Fernando Yamacita | 0-6,1-6 |
| ITF Brazil F4 | 2017/11/30 13:45 | Oscar Jose Gutierrez v Fernando Yamacita | 6-1,6-4 |
| ITF Brazil F4 | 2017/11/28 13:10 | Eber Tiepermann v Fernando Yamacita | 0-6,1-6 |
| ITF Brazil F4 | 2017/11/26 10:30 | Fernando Yamacita v Paulo A S Dos Santos | 6-4,6-1 |
| ATP Rio De Janeiro Qual | 2018/02/17 18:00 | Guilherme Clezar v Alessandro Giannessi | 7-6,4-6,3-6 |
| ATP Buenos Aires Qual | 2018/02/11 16:00 | Rogerio Dutra Silva v Guilherme Clezar | 7-6,7-6 |
| ATP Buenos Aires Qual | 2018/02/10 14:00 | Guilherme Clezar v Renzo Olivo | 7-5,6-0 |
| ATP Quito Qual | 2018/02/03 16:00 | Gonzalo Escobar v Guilherme Clezar | 6-7,7-6,6-4 |
| Challenger Newport Beach | 2018/01/22 19:55 | Guilherme Clezar v Stefan Kozlov | 2-6,3-6 |
| Challenger Rio De Janeiro | 2017/11/24 19:00 | Carlos Berlocq v Guilherme Clezar | 7-5,6-1 |
| Challenger Rio De Janeiro | 2017/11/23 14:00 | Christian Lindell v Guilherme Clezar | 3-6,0-6 |
| Challenger Rio De Janeiro | 2017/11/21 18:00 | Guilherme Clezar v Goncalo Oliveira | 3-6,6-3,6-3 |