The headline casualty came early. Franco Stupaczuk and Miguel Yanguas, seeded sixth, exited in the round of 16 — beaten in straight sets by a pairing more than a dozen ranking places below them. It set the tone for a day that punished the favourites and rewarded the persistent.
Jeronimo Gonzalez / Lucas Campagnolo 6-4 7-6 Franco Stupaczuk / Miguel Yanguas
The ranking gap was real: Stupa (No. 6) and Yanguas (No. 7) were the clear paper favourites against Jeronimo Gonzalez (No. 14) and Lucas Campagnolo (No. 21). It did not show on court. Gonzalez and Campagnolo broke once in the first set and held their nerve through a tense second.
That second set went the distance. With the match on his racket, Yanguas could not close it out, and the underdogs took the tiebreak to seal a 6-4 7-6 win and avoid a deciding set entirely. It is a costly defeat for a Stupaczuk-Yanguas project that needs deep runs to justify its billing.
The result blows open the bottom half of the men's draw. A team that should have been a quarter-final certainty is gone before the last eight.
Nuria Rodriguez / Giulia Dal Pozzo 6-4 0-6 7-6 Carolina Orsi / Patricia Llaguno Zielinski
Italian wildcard Giulia Dal Pozzo and Nuria Rodriguez needed everything they had to get through their round of 16. They took the first set 6-4, then were handed a bagel — a 6-0 second set that suggested the momentum had swung decisively against them.
It hadn't. The pair regrouped and dragged the decider all the way to a tiebreak, edging it to win 6-4 0-6 7-6. A wild swing of a match, and the kind of escape that often fuels a run.
Nuria Rodriguez / Giulia Dal Pozzo 3-6 6-3 6-2 Sofia Araujo / Claudia Fernandez
And run they did. In the quarter-final, Rodriguez and Dal Pozzo — the latter ranked No. 50 — took down Claudia Fernandez (No. 6) and Sofia Araujo (No. 8), a roughly 45-place ranking chasm. After dropping the opening set 3-6, they reeled off the next two for a 3-6 6-3 6-2 win.
Two seeded scalps in a single day, on home soil for Dal Pozzo. It is the standout story of the women's draw and books an unlikely semi-final place against the grain of the seedings.
Arturo Coello / Agustin Tapia 6-1 6-1 David Gala / Enzo Jensen
No such drama for the world No. 1 men's pairing. Coello and Tapia dismantled David Gala and Enzo Jensen 6-1 6-1, dropping just two games across the match. Routine, ruthless, and over quickly.
Gemma Triay / Delfina Brea 6-1 6-1 Patricia Martinez Fortun / Claudia Escacena
The top women's seeds matched their male counterparts' efficiency. Gemma Triay and Delfi Brea needed barely an hour, winning 6-1 6-1 against Martinez Fortun and Escacena. A statement of intent from the No. 1 team as the draw thins.
With Stupaczuk-Yanguas out and the Rodriguez-Dal Pozzo fairytale rolling on, the quarter-finals and semis promise more disruption — even as Coello-Tapia and Triay-Brea look untroubled at the top.