Primera Federación Group 1
Champions: Tenerife · Promoted: Tenerife, Celta Fortuna
Split from Segunda División B Group 1 (?–2021), Segunda División B Group 2 (?–2021), Segunda División B Group 3 (?–2021), Segunda División B Group 4 (?–2021)
No managerial changes recorded for 2025-26 yet.
Sources: Wikipedia (CC BY-SA 4.0), API-Football · Data sources