| Challenger - Lima | 10/25 15:00 | 25 | Juan Manuel Cerundolo v Joao Lucas Reis da Silva | Cancelled | |
| Challenger Ambato | 10/23 17:30 | 29 | [448] Joao Lucas Reis da Silva v Facundo Bagnis [114] | 6-7,4-6 | |
| Challenger Ambato | 10/22 19:00 | 28 | [123] Juan Pablo Varillas v Joao Lucas Reis da Silva [448] | 4-6,4-6 | |
| Challenger Ambato | 10/21 17:45 | 27 | [448] Joao Lucas Reis da Silva v Miljan Zekic [245] | 7-6,6-1 | |
| Challenger Ambato | 10/19 15:00 | 26 | [448] Joao Lucas Reis da Silva v Nicolas Alvarez [305] | 5-7,6-1,6-4 | |
| Challenger Ambato | 10/18 15:00 | 25 | [143] Juan Pablo Ficovich v Joao Lucas Reis da Silva [448] | 6-7,4-6 | |
| Challenger Rio De Janeiro | 10/10 16:55 | 25 | [166] Yannick Hanfmann v Joao Lucas Reis da Silva [449] | 6-1,6-1 | |
| Challenger - Campinas | 10/02 17:10 | 14 | [482] Wilson Leite v Joao Lucas Reis da Silva [443] | 4-6,6-0,6-4 | |
| Challenger - Buenos Aires | 09/26 14:00 | 19 | [374] Thiago Seyboth Wild v Joao L R Da Silva [443] | 6-4,6-4 | |
| Challenger - Buenos Aires | 09/25 15:00 | 14 | Nicolas G Longo v Joao L R Da Silva | 2-6,2-6 | |
| Challenger Villa Maria | 09/19 17:45 | 19 | [423] Joao Lucas Reis da Silva v Orlando Luz [188] | 3-6,3-6 | |
| Challenger Villa Maria | 09/18 18:15 | 14 | [418] Joao Lucas Reis da Silva v Guido Andreozzi [273] | 6-2,5-7,7-6 | |
| ITF M25 Santander | 08/23 08:00 | 25 | Mario Mansilla Diez v Joao Lucas Reis da Silva | Cancelled | |
| ITF M15 Recife | 08/21 13:30 | 29 | Eduardo Ribeiro v Joao Lucas Reis da Silva | 3-6,6-3,6-4 | |
| ITF M15 Recife | 08/20 15:30 | 28 | [468] Joao Lucas Reis da Silva v Ignacio Carou [244] | 6-7,6-1,6-2 | |
| ITF M15 Recife | 08/19 18:45 | 27 | Fernando Yamacita v Joao Lucas Reis da Silva | 2-6,3-6 | |
| ITF M15 Recife | 08/18 15:55 | 26 | Lorenzo Gagliardo v Joao Lucas Reis da Silva | 6-7,3-6 | |
| ITF M15 Recife | 08/17 22:30 | 25 | Igor Gimenez v Joao Lucas Reis da Silva | 3-6,2-6 | |
| ITF M25 Guayaquil | 08/14 16:00 | 29 | [263] Gonzalo Lama v Joao Lucas Reis da Silva [491] | 6-4,4-6,6-2 | |
| ITF M25 Guayaquil | 08/13 15:55 | 28 | [475] Matias Franco Descotte v Joao Lucas Reis da Silva [491] | 3-6,4-6 | |
| ITF M25 Guayaquil | 08/12 18:25 | 27 | [491] Joao Lucas Reis da Silva v Jose Pereira [404] | 6-4,6-3 | |
| ITF M25 Guayaquil | 08/11 15:00 | 26 | Joao Lucas Reis da Silva v Tobias Franco | 6-0,1-6,6-3 | |
| ITF M25 Guayaquil | 08/10 17:10 | 25 | Joao Lucas Reis da Silva v Andres Andrade | 7-6,6-2 | |
| ITF M25 Portoviejo | 08/06 17:00 | 28 | Joao L R Da Silva v Matias Soto | 4-6,4-6 | |
| ITF M25 Portoviejo | 08/05 18:00 | 27 | [257] Gonzalo Lama v Joao L R Da Silva [480] | 3-6,5-7 | |
| ITF M25 Portoviejo | 08/04 16:50 | 26 | Bastian Malla v Joao L R Da Silva | 4-6,4-6 | |
| ITF M25 Portoviejo | 08/03 18:00 | 25 | Alberto O A Berrospi v Joao L R Da Silva | 4-6,6-7 | |
| Challenger - Buenos Aires | 06/24 13:00 | 27 | [492] Joao Lucas Reis da Silva v Felipe Meligeni Rodrigues Alves [213] | 4-6,2-6 | |
| Challenger - Buenos Aires | 06/22 13:00 | 26 | [301] Roberto Quiroz v Joao Lucas Reis da Silva [492] | 6-4,1-6,2-6 | |
| Challenger - Buenos Aires | 06/20 16:50 | 25 | Alex Barrena v Joao Lucas Reis da Silva | 3-6,6-1,4-6 |