Competition format
The Segunda División was divided into seven inter-regional groups. Each group played their season as home and away round-robin format. The seven group champions (for group 6, the winner of the Canarian final) and the best runner-up qualified for the promotion playoffs. In the promotion playoffs, the eight teams were divided by draw into two groups of four teams that played a double-leg knockout format. The two winners promoted to the Primera División. Depending on how the format change is perceived, the top four teams of each group and the two best fifth qualified teams remain in/are promoted to the 2019–20 Segunda División Pro, together with the two relegated teams from Primera División, giving a total of 32 teams to be divided into two groups. All others (depending on the perception) remain in/are relegated to theGroup 1
Group 2
Group 3
Group 4
Group 5
Group 6
Las Palmas Group
Tenerife Group
Canarian final
The winner of the Canarian final qualified to the promotion stage. After the refusal of Granadilla B, Tacuense was allowed to play the playoff.Promotion playoff
Group 7
Ranking of second-placed teams
Ranking of fifth-placed teams
Promotion playoffs
The bracket was drawn on 23 April 2019.References
{{DEFAULTSORT:Segunda Division, 2018-19