Stadium: Court 18 Round: 26 Ground: Clay
| ITF M25 Rio de Janeiro | 2019/10/10 16:30 | Matias Zukas v Joao Lucas Reis da Silva | 6-3,3-6,6-4 |
| ITF M15 Antalya | 2021/03/02 09:00 | Joao Lucas Reis da Silva v Simone Roncalli | 6-2,6-3 |
| ITF M15 Antalya | 2021/02/24 09:35 | Matheus Pucinelli De Almeida v Joao Lucas Reis da Silva | 6-3,6-2 |
| ITF M15 Antalya | 2021/02/18 11:30 | Giovanni Fonio v Joao Lucas Reis da Silva | 6-4,2-6,7-5 |
| ITF M15 Antalya | 2021/02/16 10:05 | Joao Lucas Reis da Silva v Toby Alex Kodat | 6-0,6-4 |
| ITF M15 Antalya | 2021/02/07 06:00 | Joao Lucas Reis da Silva v Max Houkes | 4-6,4-6 |
| ITF M15 Antalya | 2021/01/31 08:15 | Joao Lucas Reis da Silva v Pol Martin Tiffon | 3-6,5-7 |
| ITF M15 Antalya | 2021/01/29 07:00 | Joao Lucas Reis da Silva v Stefano Battaglino | 6-4,4-6,10-7 |
| ITF M15 Antalya | 2021/01/29 07:00 | Joao Lucas Reis da Silva v Guy Den Heijer | 6-3,6-3 |
| ITF M15 Antalya | 2021/03/03 07:00 | Andrea Picchione v Matias Zukas | 6-1,3-6,3-6 |
| ITF M15 Antalya | 2021/02/27 06:50 | Matias Zukas v Raul Brancaccio | 1-6,6-4,2-6 |
| ITF M15 Antalya | 2021/02/26 06:50 | Matias Zukas v Filip Misolic | 6-1,7-5 |
| ITF M15 Antalya | 2021/02/25 07:00 | Sean Cuenin v Matias Zukas | 2-6,2-6 |
| ITF M15 Antalya | 2021/02/24 11:25 | Matias Zukas v Mick Veldheer | 6-4,6-1 |
| ITF M15 Antalya | 2021/02/21 06:50 | Matias Zukas v Pedro Cachin | 1-6,4-6 |
| ITF M15 Antalya | 2021/02/20 07:00 | Gabriel Donev v Matias Zukas | 1-6,7-6,3-6 |
| ITF M15 Antalya | 2021/02/19 11:00 | Matias Zukas v Alex M Pujolras | 6-4,6-4 |