Stadium: Klenert Court Round: 54 Ground: Clay
| ITF Brazil F2 | 2018/05/02 18:10 | Oscar Jose Gutierrez v Joao Lucas Reis da Silva | 6-4,6-3 |
| ITF Brazil F2 | 2017/11/16 14:30 | Joao Lucas Reis da Silva v Oscar Jose Gutierrez | 5-7,4-6 |
| ITF M25 Karlsruhe | 2019/06/03 09:00 | Oscar Jose Gutierrez v Marvin Schaber | 6-3,6-2 |
| ITF M25 Gyula | 2019/05/30 08:00 | Hugo Grenier v Oscar Jose Gutierrez | 6-2,2-6,7-6 |
| ITF M25 Gyula | 2019/05/29 07:00 | Alexander Igoshin v Oscar Jose Gutierrez | 7-5,4-6,3-6 |
| ITF M15 Brcko | 2019/05/22 10:50 | Pierre Faivre v Oscar Jose Gutierrez | 7-5,7-5 |
| ITF M25 Doboj | 2019/05/15 07:00 | Botic Van De Zandschulp v Oscar Jose Gutierrez | 6-3,6-7,6-2 |
| ITF M15 Troisdorf | 2019/05/10 11:30 | Jeroen Vanneste v Oscar Jose Gutierrez | 7-6,6-3 |
| ITF M15 Troisdorf | 2019/05/09 10:15 | Oscar Jose Gutierrez v Michael Geerts | 5-7,6-3,6-3 |
| ITF M15 Troisdorf | 2019/05/08 10:30 | Lucas Gerch v Oscar Jose Gutierrez | 3-6,2-6 |
| ITF M25 Karlsruhe | 2019/06/03 09:00 | Luis Erlenbusch v Joao Lucas Reis da Silva | 2-6,6-1,8-10 |
| ITF M25 Gyula | 2019/05/30 09:50 | Christopher Heyman v Joao Lucas Reis da Silva | 6-3,6-4 |
| ITF M25 Gyula | 2019/05/29 09:25 | Joao Lucas Reis da Silva v Alessandro Coppini | 6-4,6-4 |
| ITF M15 Bucharest | 2019/05/23 07:00 | Alexander Igoshin v Joao Lucas Reis da Silva | 7-5,7-5 |
| ITF M15 Bucharest | 2019/05/21 10:25 | Matei A Georgescu v Joao Lucas Reis da Silva | 2-6,6-7 |
| ITF M15 Cancun | 2019/04/10 15:25 | Joao Lucas Reis da Silva v Jean Thirouin | 2-6,6-3,5-7 |
| ITF M15 Cancun | 2019/03/26 16:35 | Mateus Alves v Joao Lucas Reis da Silva | 6-3,6-4 |
| ITF M15 Cancun | 2019/03/19 21:00 | Jordi Arconada v Joao Lucas Reis da Silva | 6-3,1-6,6-3 |