Nine teams have already secured promotion from the third division to the second division B, winning through the play-offs between the eighteen regional group champions. These were as follows:
Getafe B, Haro, Llagostera, Mérida, Orihuela, Osasuna B, Peña Deportiva, Racing Ferrol, Yeclano.
The remaining nine spots will be decided after a knock-out stage which finishes towards the end of June. (03.06.19)