AD Unión Adarve

[2] In 2013, Unión Adarve qualified for the first time in the promotion playoffs, but was eliminated by CD Tropezón in the second round.

After several other attempts, promotion was finally gained in 2017 with an away goals victory after a 4–4 draw with Atlético Malagueño.

[3] In the club's first Segunda División B campaign, they competed for the first time in the Copa del Rey, defeating neighbours CF Rayo Majadahonda 1–0 away in the first round on 30 August.

[6] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.