Stadium: Court 3 Round: 25 Ground: Clay
| 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 Alkmaar | 2019/06/26 16:05 | Mick Veldheer v Joao Lucas Reis da Silva | 2-6,0-6 |
| ITF M15 Balatonalmadi | 2019/06/18 08:00 | Joao Lucas Reis da Silva v Marek Semjan | 3-6,4-6 |
| ITF M15 Balatonalmadi | 2019/06/17 10:30 | Joao Lucas Reis da Silva v Mate Voros | 6-0,6-1 |
| ITF M15 Kaltenkirchen | 2019/06/11 16:10 | Markus Eriksson v Joao Lucas Reis da Silva | 7-6,6-2 |
| ITF M15 Bad Schussenried | 2019/07/22 14:30 | Luca Gelhardt v Adrian Oetzbach | 6-4,6-3 |
| ITF M15 Bad Schussenried | 2019/07/22 09:30 | Luca Gelhardt v Maksym Khalus | 6-1,6-0 |
| ITF M15 Saarlouis | 2019/07/04 14:15 | Pascal Meis v Luca Gelhardt | 6-3,6-2 |
| ITF M15 Saarlouis | 2019/07/03 10:00 | Luca Gelhardt v Ruan Roelofse | 7-5,6-3 |
| ITF M15 Saarlouis | 2019/07/01 10:00 | Ewan Moore v Luca Gelhardt | 1-6,4-6 |
| ITF M15 Saarlouis | 2019/07/01 08:00 | Luca Gelhardt v Bastien Presuhn | 6-4,4-6,10-7 |
| ITF M15 Alkmaar | 2019/06/27 12:25 | Luca Gelhardt v Colin Sinclair | 6-7,3-6 |
| ITF M15 Alkmaar | 2019/06/26 12:10 | Luca Gelhardt v Bart Stevens | 7-6,6-1 |