| 30. Ronde | 02.04.2023 | Athletic Club B | - | CA Osasuna B | 1:0 | ||||
| 31. Ronde | 09.04.2023 | CF La Nucía | - | Athletic Club B | 3:1 | ||||
| 32. Ronde | 16.04.2023 | Athletic Club B | - | CD Numancia | 0:1 | ||||
| 33. Ronde | 22.04.2023 | Real Unión | - | Athletic Club B | 2:1 | ||||
| 34. Ronde | 30.04.2023 | Athletic Club B | - | CD Castellón | 0:2 | ||||
| 35. Ronde | 07.05.2023 | UE Cornellà | - | Athletic Club B | 1:0 | ||||
| 36. Ronde | 13.05.2023 | Athletic Club B | - | CD Alcoyano | 1:3 |  |
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| 37. Ronde | 20.05.2023 | CD Eldense | - | Athletic Club B | 1:0 | ||||
| 38. Ronde | 27.05.2023 | Athletic Club B | - | SD Amorebieta | 0:0 |
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