Stadium: SundS Court Round: 25 Ground: Clay
| Den Haag, Singles Qualifying M-ITF-NED-02A | 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 Alkmaar | 2019/06/26 16:05 | Veldheer, Mick v Joao Lucas Reis da Silva | 2-6,0-6 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/18 08:00 | Joao Lucas Reis da Silva v Semjan, Marek | 3-6,4-6 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/17 10:30 | Joao Lucas Reis da Silva v Voros, Mate | 6-0,6-1 |
| Kaltenkirchen, Singles Qualifying M-ITF-GER-05A | 2019/06/11 16:10 | Eriksson, Markus v Joao Lucas Reis da Silva | 7-6,6-2 |
| Karlsruhe, Singles M-ITF-GER-04A | 2019/06/05 13:55 | Daniel Dutra Da Silva v Joao Lucas Reis da Silva | 6-4,6-2 |
| Karlsruhe, Singles M-ITF-GER-04A | 2019/06/04 09:00 | Oscar Jose Gutierrez v Joao Lucas Reis da Silva | 1-6,2-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/07 10:00 | Zukas, Matias v Ryan Nijboer | 6-4,6-2 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/05 10:55 | Yanais Laurent v Ryan Nijboer | 2-6,2-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/04 11:25 | Daniel De Jonge v Ryan Nijboer | 3-6,0-6 |
| Den Haag, Singles Qualifying M-ITF-NED-02A | 2019/07/03 11:15 | Dijkhuizen, Marc v Ryan Nijboer | 3-6,6-3,2-6 |
| ITF M15 Alkmaar | 2019/06/26 13:25 | Andrea Bolla v Ryan Nijboer | 6-7,7-5,6-3 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/20 08:00 | Ryan Nijboer v Georgii Kravchenko | 7-5,4-6,3-6 |
| Balatonalmadi, Singles Qualifying M-ITF-HUN-02A | 2019/06/19 09:50 | Ryan Nijboer v Naoki Tajima | 6-3,6-2 |
| ITF - M25 Sunderland | 2019/04/09 10:25 | Zizou Bergs v Ryan Nijboer | 6-2,4-6,6-1 |