| Challenger Coquimbo | 05/05 18:40 | 28 | [282] Joao Lucas Reis da Silva v Roman A Burruchaga [262] | 6-2,6-4 | |
| Challenger Coquimbo | 05/04 16:10 | 27 | [220] Nick Hardt v Joao Lucas Reis da Silva [282] | 3-6,7-6,1-6 | |
| Challenger Coquimbo | 05/03 18:20 | 26 | [342] Pedro B Dias v Joao Lucas Reis da Silva [282] | 2-6,2-6 | |
| Challenger Coquimbo | 05/01 18:40 | 25 | [335] Ribeiro, Eduardo v Joao Lucas Reis da Silva [282] | 2-6,3-6 | |
| Challenger - Buenos Aires | 04/27 16:15 | 26 | [251] Hernan Casanova v Joao Lucas Reis da Silva [282] | 6-1,6-7,6-4 | |
| Challenger - Buenos Aires | 04/25 13:00 | 25 | [282] Joao Lucas Reis da Silva v Juan Pablo Ficovich [221] | 6-2,7-5 | |
| Challenger - Morelos | 04/18 16:30 | 25 | [400] Christian Langmo v Joao Lucas Reis da Silva [280] | 7-6,6-2 | |
| Challenger Leon | 04/10 22:40 | 25 | [304] Oliver Crawford v Joao Lucas Reis da Silva [291] | 6-3,3-6,6-3 | |
| Challenger - San Luis Potosí | 04/05 20:00 | 26 | [291] Reis Da Silva, Joao Lucas v Jan Choinski [194] | 5-7,5-7 | |
| Challenger - San Luis Potosí | 04/03 22:30 | 25 | [291] Reis Da Silva, Joao Lucas v Adam Walton [331] | 6-1,3-6,6-4 | |
| Challenger - Santiago | 03/08 19:15 | 26 | [301] Reis Da Silva, Joao Lucas v Luciano Darderi [180] | 6-4,3-6,5-7 | |
| Challenger - Santiago | 03/07 17:20 | 25 | [265] Daniel Dutra Da Silva v Reis Da Silva, Joao Lucas [301] | Retired | |
| Challenger - Santiago | 03/06 16:50 | 19 | [301] Reis Da Silva, Joao Lucas v Thiago Seyboth Wild [400] | 3-6,2-6 | |
| Challenger - Santiago | 03/05 17:15 | 14 | [302] Reis Da Silva, Joao Lucas v Huertas Del Pino Cordova, Arklon [490] | 7-5,6-2 | |
| ITF - M25 Tucuman | 03/01 12:00 | 25 | Joao Lucas Reis da Silva v Alejo Lorenzo Lingua Lavallen | 6-2,5-7,5-7 | |
| ATP - Rio De Janeiro | 02/18 19:00 | 14 | [88] Facundo Bagnis v Reis Da Silva, Joao Lucas [302] | 4-6,6-3,6-2 | |
| Challenger - Concepcion | 01/24 14:40 | 25 | [311] Joao Lucas Reis da Silva v Diaz Acosta, Facundo [203] | 4-6,6-3,3-6 | |
| Challenger - Concepcion | 01/23 14:00 | 19 | [282] Merino, Alexander v Joao Lucas Reis da Silva [311] | 0-6,3-6 | |
| Challenger - Concepcion | 01/22 13:00 | 14 | [229] Jakub Paul v Joao Lucas Reis da Silva [311] | 4-6,6-3,1-6 | |
| Challenger - Piracicaba | 01/16 19:50 | 25 | [311] Joao Lucas Reis da Silva v Evan Zhu [296] | 6-4,4-6,3-6 | |
| Challenger Tigre | 01/11 17:40 | 26 | [316] Joao Lucas Reis da Silva v Terence Atmane [297] | 3-6,2-6 | |
| Challenger Tigre | 01/09 18:10 | 25 | [272] Oriol Roca Batalla v Joao Lucas Reis da Silva [316] | 2-6,5-7 | |
| Challenger Temuco | 11/24 17:45 | 26 | [328] Joao Lucas Reis da Silva v Nicolas Kicker [201] | 6-3,4-6,3-6 | |
| Challenger Temuco | 11/22 13:00 | 25 | [328] Joao Lucas Reis da Silva v Galarza, Juan Ignacio [356] | 6-4,5-7,6-3 | |
| Challenger - São Leopoldo | 11/18 13:30 | 27 | [341] Joao Lucas Reis da Silva v Thiago Seyboth Wild [404] | 2-6,5-7 | |
| Challenger - São Leopoldo | 11/17 13:30 | 26 | [460] Mateus Alves v Joao Lucas Reis da Silva [341] | 6-7,1-6 | |
| Challenger - São Leopoldo | 11/16 13:00 | 25 | [341] Joao Lucas Reis da Silva v Juan Pablo Paz [405] | 6-3,6-2 | |
| Montevideo, Uruguay | 11/07 17:45 | 19 | [340] Joao Lucas Reis da Silva v Juan Pablo Paz [409] | 4-6,1-6 | |
| Montevideo, Uruguay | 11/06 15:00 | 14 | [343] Joao Lucas Reis da Silva v Ignacio Carou [234] | 6-1,6-3 | |
| Challenger - Lima | 10/25 17:05 | 25 | [329] Roman A Burruchaga v Joao Lucas Reis da Silva [347] | 6-7,7-6,6-3 |