1. Round | 27/08/2023 | Real Unión | - | CE Sabadell | 2:1 | ||||
5. Round | 24/09/2023 | Real Unión | - | CD Teruel | 3:2 | ||||
9. Round | 22/10/2023 | Real Unión | - | SD Ponferradina | 1:1 | ||||
10. Round | 29/10/2023 | CD Lugo | - | Real Unión | 2:0 | ||||
17. Round | 17/12/2023 | Real Sociedad B | - | Real Unión | 2:2 |