Coello/Tapia arrive as the reference pair: high point-ending efficiency, relentless net control, and the best transition game in P1 conditions. Alonso/Tello have upset potential via Tello’s power and first-volley dominance, but they must sustain low-error pressure and avoid getting pinned in the backhand corner exchanges. In Riyadh’s typically lively, fast conditions, Coello/Tapia remain clear favorites unless Alonso/Tello win the serve-return battle early.