Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| ITF - Sintra M15 | 2020/09/07 14:55 | Joao Lucas Reis da Silva v Pedro Araujo | 7-5,6-2 |
| ITF - Sintra M15 | 2020/09/07 10:00 | Joao Lucas Reis da Silva v Issei Okamura | 7-5,7-6 |
| ITF - Sintra M15 | 2020/09/06 10:00 | Joao Lucas Reis da Silva v Maik Steiner | 6-2,7-6 |
| ITF - Cancun M15 | 2020/02/19 15:30 | Felipe M Sarrasague v Joao Lucas Reis da Silva | 7-5,6-3 |
| ITF - Cancun M15 | 2020/02/16 14:00 | Maximiliano Estevez v Joao Lucas Reis da Silva | 6-7,1-6 |
| ITF - Cancun M15 | 2020/02/15 14:00 | Gabriel Petit v Joao Lucas Reis da Silva | 6-7,4-6 |
| ITF - Cancun M15 | 2020/02/14 13:55 | Joao Lucas Reis da Silva v Connor Farren | 6-3,6-2 |
| ITF - Cancun M15 | 2020/02/13 17:20 | Joao Lucas Reis da Silva v Christian Langmo | 6-1,6-7,6-4 |