The league calendar of the Real Madrid Castilla for the 2020/21 season, which starts the weekend of October 17 and 18. The first rival of the subsidiary will be Las Rozas, whom they will face at home. On the last day, the whites will visit San Sebastián de los Reyes.

The set led by Raul Gonzalez has been framed in the Subgroup A of Group V of the Second Division B, in which teams from the Community of Madrid and the Balearic Islands will be measured. The whites will seek in this first phase to qualify among the top three to access the second phase by promotion to Second, in which they would face the first three of Subgroup B of Group V.

FIRST ROUND	SECOND ROUND	MATCH
J. 1 – October 18	J. 10 – 17 January	Las Rozas-Real Madrid Castilla
J. 2 – 25 October	J. 11 – 24 January	Real Madrid Castilla– Getafe B
J. 3 – 1 November	J. 12 – 31 January	Ray Majadahonda-Real Madrid Castilla
J. 4 – 8 November	J. 13 – 7 February	Real Madrid Castilla-Atlético Baleares
J. 5 – 22 November	J. 14 – 14 February	Real Madrid Castilla-Navalcarnero
J. 6 – 29 November	J. 15 – 21 February	Poblense-Real Madrid Castilla
J. 7 – 6 December	J. 16 – 7 March	Real Madrid Castilla-Madrid International Doge
J. 8 – 13 December	J. 17 – 14 March	Atlético de Madrid B-Real Madrid Castilla
J. 9 – 10 January	J. 18 – 21 May	Real Madrid Castilla-Saint Sebastian of the kings

New competition system

This season the competition will take place in three phases. The first will correspond to the regular competition, the second will include three specific phases (second phase for Second division, second phase for First RFEF and second phase for remaining in Second RFEF) and the third will correspond to the playoff for promotion to Second.

The clubs that are classified in the first three places will access the second phase for Second division, those classified in the positions from fourth to sixth will access the second phase for First Division RFEF and those classified from seventh to tenth place will access the phase by the permanence in Second division RFEF.