Both sides enter the August 18 fixture with comparable recent pre-season form and limited separation in squad depth, producing tightly clustered implied probabilities around the draw. Unionistas benefit from home support at Reina Sofía and familiarity with lower-division rhythms, yet Alcorcón’s greater experience in Segunda and Primera RFEF campaigns offsets that edge through superior technical quality and rotation options. Historical head-to-head encounters have been low-scoring and decided by narrow margins, while the friendly context encourages experimental lineups that reduce predictability. Traders therefore price the three outcomes nearly level, reflecting balanced attacking and defensive metrics plus the inherent variance of early-summer preparations.