Stupaczuk/Yanguas come in as the more proven top-tier pair: higher pace in transition, heavier defense-to-attack conversion, and cleaner decision-making under pressure. Arce/Arroyo can absolutely compete if they slow the tempo and force long rallies, but in Platinum conditions the margin usually favors the pair with superior net timing and counter-lob quality. Prediction: Stupaczuk/Yanguas in 2, with one tight set decided by break-point efficiency.