Both newly promoted sides from the Tercera Federación enter this fixture on strong recent form after dominant group campaigns—Portugalete with 78 points and Gimnástica topping their table with 83. Pre-season friendlies show competitive results for each, with Portugalete retaining much of its promotion core and Gimnástica integrating new signings while maintaining defensive structure. The closely bunched implied probabilities reflect comparable squad depth, regional pedigree, and limited head-to-head history at this level, leaving the outcome highly sensitive to small edges in set-piece execution or early match tempo.