| ITF M15 Cancun | 02/15 14:00 | 28 | Petit, Gabriel v Reis Da Silva, Joao Lucas | 6-7,4-6 | |
| ITF M15 Cancun | 02/14 13:55 | 27 | Reis Da Silva, Joao Lucas v Farren, Connor | 6-3,6-2 | |
| ITF M15 Cancun | 02/13 17:20 | 26 | Reis Da Silva, Joao Lucas v Christian Langmo | 6-1,6-7,6-4 | |
| ITF M15 Cancun | 02/11 17:15 | 25 | Reis Da Silva, Joao Lucas v Alejo L L Lavallen | 6-2,6-3 | |
| ITF M15 Cancun | 02/04 13:55 | 25 | Reis Da Silva, Joao Lucas v Francisco Comesana | 5-7,2-6 | |
| ITF M15 Cancun | 11/20 18:40 | 25 | Colin Sinclair v Joao Lucas Reis da Silva | 7-5,6-7,6-4 | |
| ITF M15 Cancun | 11/17 18:30 | 29 | Paul Jubb v Joao Lucas Reis da Silva | 7-6,6-0 | |
| ITF M15 Cancun | 11/17 13:45 | 28 | Joao Lucas Reis da Silva v Hank, Tigre | 7-6,6-4 | |
| ITF M15 Cancun | 11/16 14:30 | 27 | Joao Lucas Reis da Silva v Huertas Del Pino Cordova, Arklon | 6-1,6-1 | |
| ITF M15 Cancun | 11/15 20:25 | 26 | Joao Lucas Reis da Silva v Kiranpal Pannu | 6-4,6-3 | |
| ITF M15 Cancun | 11/15 16:00 | 25 | Joao Lucas Reis da Silva v Green, Cameron | 6-3,6-3 | |
| ITF M15 Cancun | 11/10 14:00 | 29 | Colin Sinclair v Reis Da Silva, Joao Lucas | 2-6,4-6 | |
| ITF M15 Cancun | 11/09 14:00 | 28 | Nick Chappell v Reis Da Silva, Joao Lucas | 7-5,1-6,3-6 | |
| ITF M15 Cancun | 11/08 14:00 | 27 | Reis Da Silva, Joao Lucas v Lopez Villasenor, Gerardo | 6-3,6-2 | |
| ITF M15 Cancun | 11/07 16:35 | 26 | Reis Da Silva, Joao Lucas v Daniel Antonio Nunez | 7-6,6-3 | |
| ITF M15 Cancun | 11/05 16:40 | 25 | Reis Da Silva, Joao Lucas v Matheus P De Almeida | Retired | |
| Sao Paulo, Singles M-ITF-BRA-06A | 10/16 13:50 | 25 | Malla, Bastian v Joao Lucas Reis da Silva | 6-2,6-2 | |
| ITF M25 Rio de Janeiro | 10/10 16:30 | 25 | Zukas, Matias v Joao Lucas Reis da Silva | 6-3,3-6,6-4 | |
| Challenger Campinas | 09/30 18:40 | 24 | Gonzalez, Alejandro v Joao Lucas Reis da Silva | 7-5,7-5 | |
| ITF M15 Lambare | 08/25 14:00 | 29 | Gonzalo Villanueva v Joao Lucas Reis da Silva | 6-1,6-3 | |
| ITF M15 Lambare | 08/24 17:05 | 28 | Echazu, Mauricio v Joao Lucas Reis da Silva | 2-6,5-7 | |
| ITF M15 Lambare | 08/23 15:35 | 27 | Joao Lucas Reis da Silva v Miele, Andre | 7-5,7-5 | |
| ITF M15 Lambare | 08/22 15:55 | 26 | Joao Lucas Reis da Silva v Leonardo Aboian | 6-1,7-5 | |
| ITF M15 Lambare | 08/21 14:00 | 25 | Joao Lucas Reis da Silva v Da Silva, Gabriel Ciro | 6-2,5-7,6-4 | |
| ITF M15 Santa Cruz | 08/10 19:00 | 28 | Joao Lucas Reis da Silva v Juan Bautista Otegui | 3-6,6-4,5-7 | |
| ITF M15 Santa Cruz | 08/09 20:00 | 27 | Estevez Maximiliano v Joao Lucas Reis da Silva | 1-6,2-6 | |
| ITF M15 Santa Cruz | 08/08 20:00 | 26 | Andres Urrea v Joao Lucas Reis da Silva | 5-7,1-6 | |
| ITF M15 Santa Cruz | 08/07 19:00 | 25 | Santamaria, Felipe v Joao Lucas Reis da Silva | 3-6,2-6 | |
| Bad Schussenried, Singles Qualifying M-ITF-GER-10A | 07/23 12:40 | 25 | Joao Lucas Reis da Silva v Gelhardt, Luca | 4-6,2-6 | |
| ITF M25 Kassel | 07/17 14:10 | 25 | Joao Lucas Reis da Silva v Orlando Luz | 4-6,5-7 |