Pablo Infante struck an 83rd-minute winner as Mirandes edged out the challenge of Real Madrid Castilla in Burgos this evening.
Raul de Tomas fired the Blancos ahead within minutes of the restart after both outfits had cancelled each other out in the first half.
The lead was short-lived as Diaz de Cerio restored parity four minutes later in this Segunda Division encounter.
Then seven minutes from time, Infante struck the winner to give the hosts all three points.