Stadium: Cancha 1 Round: 24 Ground: Clay
| ITF Argentina F5 | 2018/09/13 15:35 | Gonzalo Villanueva v Rafael Matos | 6-2,6-2 |
| ITF Brazil F3 | 2018/05/08 13:00 | Gonzalo Villanueva v Rafael Matos | 2-6,6-3,3-6 |
| ITF Brazil F2 | 2018/05/06 15:00 | Gonzalo Villanueva v Rafael Matos | 1-6,3-6 |
| ITF M25 Toulouse | 2019/06/18 10:25 | Giovanni Mpetshi Perricard v Gonzalo Villanueva | 6-7,1-6 |
| ITF M25 Karlsruhe | 2019/06/07 14:00 | Julian Lenz v Gonzalo Villanueva | 6-3,6-0 |
| ITF M25 Karlsruhe | 2019/06/06 16:00 | Gonzalo Villanueva v Bastien Presuhn | 6-3,6-1 |
| ITF M25 Karlsruhe | 2019/06/05 09:00 | Antoine Cornut-Chauvinc v Gonzalo Villanueva | 5-7,6-7 |
| ITF M25 Kiseljak | 2019/06/02 11:00 | Gonzalo Villanueva v Christopher O'Connell | 6-3,4-6,7-10 |
| ITF M25 Kiseljak | 2019/05/31 07:00 | Marko Tepavac v Gonzalo Villanueva | 4-6,1-6 |
| ITF M25 Kiseljak | 2019/05/28 13:15 | Juan Manuel Cerundolo v Gonzalo Villanueva | 6-7,4-6 |
| ITF M15 Brcko | 2019/05/24 10:25 | David Pichler v Gonzalo Villanueva | 7-5,6-2 |
| ITF M15 Sao JDR Preto | 2019/06/18 23:35 | Rafael Matos v Franco Roncadelli | 6-2,6-1 |
| ITF M25 Vic | 2019/05/23 09:30 | Rafael Matos v Ivan Gakhov | 7-5,5-7,3-6 |
| ITF M25 Vic | 2019/05/22 15:20 | Rafael Matos v Max Alcala Gurri | 6-0,6-3 |
| ITF M15 Valldoreix | 2019/05/19 10:45 | Orlando Luz v Rafael Matos | 6-3,6-4 |
| ITF M15 Valldoreix | 2019/05/18 08:45 | Facundo Diaz Acosta v Rafael Matos | 6-7,0-6 |
| ITF M15 Valldoreix | 2019/05/16 08:30 | Rafael Matos v Alex Martinez | 6-4,6-1 |
| ITF M15 Valldoreix | 2019/05/15 12:35 | Rafael Matos v Alexander Weis | 6-3,6-0 |
| ITF M15 Tabarka | 2019/05/05 09:00 | Orlando Luz v Rafael Matos | 5-7,5-7 |