| 2023-09-15 | Davis Cup WG1 R1: AUT vs POR | Hard | RR | 289 |  Joao Sousa | 59 |  Sebastian Ofner | 5-7 6-3 7-6(1) | H2H | 3 | - | - | - | - | - | - | - |
| 2023-04-03 | Estoril | Clay | R16 | 5 |  Casper Ruud (1) | 147 | Joao Sousa (WC) | 4-6 6-2 6-2 | H2H | 3 | 135 | 4 | 2 | 71.1% | 68.5% | 63.6% | 3/5 |
| 2023-04-03 | Estoril | Clay | R32 | 147 | Joao Sousa (WC) | 121 |  Giulio Zeppieri | 6-4 1-6 6-3 | H2H | 3 | 107 | 2 | 3 | 61.5% | 72.9% | 50.0% | 2/5 |
| 2023-02-27 | Santiago | Clay | R32 | 55 |  Laslo Djere (6) | 147 | Joao Sousa | 6-3 6-2 | H2H | 3 | 77 | 6 | 1 | 56.8% | 84.0% | 78.9% | 0/0 |
| 2023-02-20 | Rio De Janeiro | Clay | R32 | 111 |  Hugo Dellien (PR) | 143 | Joao Sousa | 6-0 6-2 | H2H | 3 | 65 | 2 | 0 | 70.7% | 89.7% | 33.3% | 1/1 |
| 2023-02-13 | Buenos Aires | Clay | R32 | 101 |  Juan Pablo Varillas (Q) | 142 | Joao Sousa | 6-2 7-5 | H2H | 3 | 102 | 4 | 3 | 51.7% | 77.4% | 44.8% | 2/4 |
| 2023-02-06 | Cordoba | Clay | QF | 54 |  Albert Ramos-Vinolas (3) | 162 | Joao Sousa | 6-4 2-6 6-1 | H2H | 3 | 132 | 4 | 1 | 59.5% | 56.8% | 63.3% | 5/9 |
| 2023-02-06 | Cordoba | Clay | R16 | 162 | Joao Sousa | 103 |  Cristian Garin | 7-5 7-6(6) | H2H | 3 | 122 | 1 | 2 | 59.7% | 71.7% | 58.1% | 2/4 |
| 2023-02-06 | Cordoba | Clay | R32 | 162 | Joao Sousa | 81 |  Tomas Martin Etcheverry | 3-6 7-6(5) 6-4 | H2H | 3 | 186 | 6 | 2 | 57.8% | 78.0% | 37.2% | 6/9 |
| 2023-02-04 | Davis Cup QLS R1: CZE vs POR | Clay | RR | 122 |  Tomas Machac | 84 | Joao Sousa | 7-6(6) 3-6 6-2 | H2H | 3 | - | - | - | - | - | - | - |
