Vilariño and Del Castillo upset eighth seeds in Miami

Nacho Vilariño and Mario Del Castillo defeated eighth seeds Javi Garrido and Lucas Bergamini 6–4, 6–1 at Miami P1. The result came four days after their Silver title in Parma and secured a round-of-sixteen meeting with Javier Barahona and Javi García.

Federico Chingotto and Alejandro Galán opened with a 6–3, 6–1 win over Pincho Fernandez and José Luis Gonzalez. Arturo Coello and Agustín Tapia beat Agustín Torre and Curro Cabeza 6–1, 6–4, while Juan Lebrón and Leo Augsburger also advanced in straight sets.

Franco Stupaczuk and Mike Yanguas defeated Pol Hernandez and Guille Collado 6–1, 7–5. In the women’s draw, Ari Sánchez and Andrea Ustero progressed directly to the quarterfinals after Laia Rodriguez and Noa Cánovas withdrew because of Cánovas’ injury, before the leading women’s pairs began their campaigns.