Stadium: Court 11 Round: 26 Ground: Clay
| ITF M15 Lambare | 2019/08/21 15:30 | Gonzalo Villanueva v Oliveira, Cristian | 6-1,7-6 |
| ITF M15 Eupen | 2019/08/11 13:00 | Michael Geerts v Gonzalo Villanueva | 4-6,1-6 |
| ITF M15 Eupen | 2019/08/10 12:15 | Genaro Alberto Olivieri v Gonzalo Villanueva | 2-6,6-7 |
| ITF M15 Eupen | 2019/08/09 13:40 | Daniel De Jonge v Gonzalo Villanueva | 6-4,1-6,0-6 |
| ITF M15 Eupen | 2019/08/08 14:05 | Gauthier Onclin v Gonzalo Villanueva | 7-5,2-6,6-7 |
| ITF M15 Eupen | 2019/08/06 15:00 | van Beem, Colin v Gonzalo Villanueva | 3-6,4-6 |
| Brussels, Singles M-ITF-BEL-03A | 2019/08/02 09:00 | Jesper De Jong v Gonzalo Villanueva | 2-6,6-3,6-4 |
| Brussels, Singles M-ITF-BEL-03A | 2019/08/01 10:20 | Gauthier Onclin v Gonzalo Villanueva | 6-4,2-6,3-6 |
| ITF M15 Lambare | 2019/08/21 20:15 | Blumenberg, Alex v Fernando Yamacita | 7-5,6-3 |
| La Paz, Singles M-ITF-BOL-02A | 2019/08/16 14:00 | Blumenberg, Alex v Hinsching, Joao | 4-6,6-7 |
| La Paz, Singles M-ITF-BOL-02A | 2019/08/15 16:40 | Blumenberg, Alex v Gimenez, J. | 6-3,6-2 |
| La Paz, Singles M-ITF-BOL-02A | 2019/08/14 14:00 | Fermin Tenti v Blumenberg, Alex | 6-7,3-6 |
| ITF M15 Santa Cruz | 2019/08/10 22:15 | Juan Sebastian Gomez v Blumenberg, Alex | 7-5,7-6 |
| ITF M15 Santa Cruz | 2019/08/09 22:00 | Blumenberg, Alex v Mariano Navone | 6-4,6-7,6-4 |
| ITF M15 Santa Cruz | 2019/08/08 22:00 | Mendoza, Alejandro v Blumenberg, Alex | 6-3,3-6,2-6 |
| ITF M15 Santa Cruz | 2019/08/07 21:05 | Volpi, Octavio v Blumenberg, Alex | 3-6,2-6 |