Valenzuela/Piltcher look like the more structured pair in this matchup, with a higher ceiling if they impose steady cross-court patterns and protect the middle. Martinez Gomez/Perez Ortiz can compete by speeding up points and forcing rushed volleys, but in Asunción’s typically warm, lively conditions the team that controls the net and first-bounce depth should edge it. Prediction: slight advantage Valenzuela/Piltcher in two tight sets if they win the long rallies.