Group 12 – Canary Islands Teams and locations Subgroup A Subgroup B Group 13 – Region of Murcia Teams and locations Subgroup A Subgroup B Group 14 – Extremadura Teams and locations Subgroup A Subgroup B Group 15 – Navarre Teams and locations Subgroup A Subgroup B Group 16 – La Rioja Teams and locations Subgroup A Subgroup B Group 17 – Aragon Teams and locations Subgroup A Subgroup B Group 18 – Castilla-La Mancha Teams and locations Subgroup A Subgroup B Second phase Promotion groups Group 1C Group 2C Group 3C Group 4C Group 5C Group 6C Group 7C Group 8C Group 9C Group 10C Group 11C Group 12C Group 13C Group 14C Group 15C Group 16C Group 17C Group 18C Promotion play-off groups Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 Group 8 Group 9 Group 10 Group 11 Group 12 Group 13 Group 14 Group 15 Group 16 Group 17 Group 18 Relegation groups Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 Group 8 Group 9 Group 10 Group 11 Group 12 Group 13 Group 14 Group 15 Group 16 Group 17 Group 18 Play-offs References External links Royal Spanish Football Federation website Tercera División seasons 4 Spain