| ITF - M15 Antalya | 01/31 08:15 | 25 | Reis Da Silva, Joao Lucas v Pol M Tiffon | 3-6,5-7 | |
| ITF - M15 Antalya | 01/29 07:00 | 62 | Joao Lucas Reis da Silva v Guy Den Heijer | 6-3,6-3 | |
| ITF - M15 Antalya | 01/29 07:00 | 62 | Joao Lucas Reis da Silva v Battaglino, Stefano | 6-4,4-6,10-7 | |
| ITF - M15 Antalya | 01/28 07:00 | 62 | Joao Lucas Reis da Silva v Minc, Charles | 6-4,6-2 | |
| Challenger Campinas | 11/30 17:15 | 25 | Reis Da Silva, Joao Lucas v Facundo Bagnis | 7-6,4-6,4-6 | |
| Challenger Sao Paulo | 11/24 15:00 | 25 | Lindell, Christian v Reis Da Silva, Joao Lucas | 6-2,4-6,6-3 | |
| Challenger Sao Paulo | 11/22 16:00 | 164 | Benjamin Lock v Reis Da Silva, Joao Lucas | 1-6,4-6 | |
| Challenger Sao Paulo | 11/21 17:45 | 64 | Paulo Knippling v Reis Da Silva, Joao Lucas | 0-6,1-6 | |
| ITF M15 Quinta Do Lago | 11/03 12:00 | 25 | Michael Geerts v Joao Lucas Reis da Silva | 7-6,7-5 | |
| ITF - M25 Vale Do Lobo | 10/28 11:45 | 25 | Nikolas S Izquierdo v Joao Lucas Reis da Silva | 3-6,7-5,6-4 | |
| ITF - M25 Vale Do Lobo | 10/27 10:30 | 44 | Joao Lucas Reis da Silva v Goncalo Falcao | 6-4,6-4 | |
| ITF - M25 Vale Do Lobo | 10/26 12:00 | 44 | Joao Lucas Reis da Silva v Fernandes, Paulo | 6-1,6-4 | |
| ITF - M25 Vale Do Lobo | 10/25 14:00 | 44 | Joao Lucas Reis da Silva v Sousa Severin, Guilherme | 6-4,5-7,10-8 | |
| ITF M15 Setubal | 10/09 11:50 | 27 | Reis Da Silva, Joao Lucas v Sebastian Fanselow | 6-7,3-6 | |
| ITF M15 Setubal | 10/08 08:55 | 26 | Johnson, Luke v Reis Da Silva, Joao Lucas | 2-6,6-7 | |
| ITF M15 Setubal | 10/07 11:00 | 25 | Reis Da Silva, Joao Lucas v Dan Added | 4-6,6-4,6-4 | |
| ITF M15 Setubal | 10/05 13:00 | 44 | Joao Lucas Reis da Silva v Eero Vasa | 3-6,7-5,11-9 | |
| ITF M15 Setubal | 10/05 09:00 | 44 | Joao Lucas Reis da Silva v Ribeiro Marcondes, Igor | 3-6,7-5,10-4 | |
| ITF M25 Porto | 09/28 15:00 | 44 | Ribeiro Marcondes, Igor v Joao Lucas Reis da Silva | 2-6,6-3,10-6 | |
| ITF M25 Porto | 09/27 13:30 | 44 | Hands, Tom v Joao Lucas Reis da Silva | 3-6,4-6 | |
| ITF M15 Castelo Branco | 09/25 10:40 | 27 | Reis Da Silva, Joao Lucas v Strong Kirchheimer | 6-3,6-7,2-6 | |
| ITF M15 Castelo Branco | 09/24 13:55 | 26 | Rodrigues, Natan v Reis Da Silva, Joao Lucas | 2-6,5-7 | |
| ITF M15 Castelo Branco | 09/23 09:00 | 25 | Otto Virtanen v Reis Da Silva, Joao Lucas | 5-7,3-6 | |
| ITF M15 Sintra | 09/10 08:25 | 26 | Reis Da Silva, Joao Lucas v Aziz Dougaz | 4-6,4-6 | |
| ITF M15 Sintra | 09/09 10:35 | 25 | Reis Da Silva, Joao Lucas v Romain Faucon | 6-2,6-0 | |
| ITF M15 Sintra | 09/07 14:55 | 44 | Reis Da Silva, Joao Lucas v Pedro Araujo | 7-5,6-2 | |
| ITF M15 Sintra | 09/07 10:00 | 44 | Joao Lucas Reis da Silva v Issei Okamura | 7-5,7-6 | |
| ITF M15 Sintra | 09/06 10:00 | 44 | Joao Lucas Reis da Silva v Maik Steiner | 6-2,7-6 | |
| ITF M15 Cancun | 02/19 15:30 | 25 | Martinez Sarrasague, Felipe v Joao Lucas Reis da Silva | 7-5,6-3 | |
| ITF M15 Cancun | 02/16 14:00 | 29 | Estevez Maximiliano v Reis Da Silva, Joao Lucas | 6-7,1-6 |