Stadium: Cancha 1 Round: 28 Ground: Clay
| ITF M15 Santa Cruz | 2019/08/09 20:00 | Maximiliano Estevez v Joao Lucas Reis da Silva | 1-6,2-6 |
| ITF M15 Santa Cruz | 2019/08/08 20:00 | Andres Urrea v Joao Lucas Reis da Silva | 5-7,1-6 |
| ITF M15 Santa Cruz | 2019/08/07 19:00 | Felipe Santamaria v Joao Lucas Reis da Silva | 3-6,2-6 |
| ITF M15 Bad Schussenried | 2019/07/23 12:40 | Joao Lucas Reis da Silva v Luca Gelhardt | 4-6,2-6 |
| ITF M25 Kassel | 2019/07/17 14:10 | Joao Lucas Reis da Silva v Orlando Luz | 4-6,5-7 |
| ITF M15 Marburg | 2019/07/10 11:00 | Joao Lucas Reis da Silva v Ryan Nijboer | 2-6,7-5,3-6 |
| ITF M15 Den Haag | 2019/07/02 12:55 | Guy Den Heijer v Joao Lucas Reis da Silva | 6-4,6-1 |
| ITF M15 Alkmaar | 2019/06/27 14:50 | Enrico Dalla Valle v Joao Lucas Reis da Silva | 6-4,6-2 |
| ITF M15 Santa Cruz | 2019/08/09 20:00 | Juan Bautista Otegui v Gabriel Alejandro Hidalgo | 6-0,7-5 |
| ITF M15 Santa Cruz | 2019/08/08 20:00 | Juan Bautista Otegui v Oleg Khotkov | 6-1,6-4 |
| ITF M15 Santa Cruz | 2019/08/06 18:30 | Juan Bautista Otegui v Joao Hinsching | 6-4,7-5 |
| ITF M15 Buenos Aires | 2019/07/11 15:40 | Mateus Alves v Juan Bautista Otegui | 2-6,5-7 |
| ITF M15 Buenos Aires | 2019/07/09 16:45 | Juan Bautista Otegui v Joao Pedro Sorgi | 6-1,7-6 |
| ITF M25 Buenos Aires | 2019/07/06 17:05 | Juan Bautista Otegui v Francisco Cerundolo | 6-1,4-6,2-6 |
| ITF M25 Buenos Aires | 2019/07/05 13:00 | Juan Bautista Otegui v Francisco Comesana | 7-5,6-2 |
| ITF M25 Buenos Aires | 2019/07/04 14:05 | Juan Ignacio Galarza v Juan Bautista Otegui | 4-6,5-7 |