Overview
- S.D. Beasain defeated SD Leioa 1-0 in the first leg of their promotion playoff, with Ander Bengoetxea scoring the lone goal via a header in the 24th minute.
- Under playoff tie-break rules, SD Leioa would secure promotion if the aggregate score ends level after the second leg.
- Club Portugalete and Deusto drew 1-1 in their first leg, with Gonzalo Zorrilla scoring for Portugalete and Iker Hierro equalizing for Deusto late in the match.
- Portugalete will host the second leg at La Florida, where any draw after extra time would see them advance to the next round.
- Both ties remain finely balanced, with defensive solidity and set-piece execution likely to play decisive roles in the return matches.