Overview

• Madison Keys, the No. 6 seed, lost to Mexico’s Renata Zarazua 6-7 (10), 7-6 (3), 7-5 in a three-hour, 10-minute opener in New York.
• Keys committed 89 unforced errors and 14 double faults despite a 46–8 edge in winners and a 7–0 advantage in aces.
• Zarazua saved seven of 12 break points and converted six of 10, closing the match with a final-set break on her first match point.
• The result sends Zarazua to a second-round meeting with France’s Diane Parry, who routed Petra Kvitova 6-1, 6-0.
• Elsewhere, Barbora Krejcikova beat No. 22 Victoria Mboko 6-3, 6-2; Elena Rybakina and Liudmila Samsonova advanced; Dayana Yastremska fell to Anastasia Pavlyuchenkova; and Yulia Putintseva, Priscilla Hon, Elise Mertens, Taylor Townsend, and Iva Jovic moved on as Claire Liu lost to Cristina Busca.