WASHINGTON — Emma Raducanu handed No. 7 seed Marta Kostyuk her sixth consecutive loss Tuesday, defeating her 7-6 (4), 6-4 at the DC Open to prolong a slide that now has lasted more than two months.
This was the fifth tournament in a row where Kostyuk exited in the first round; she also lost in the fourth round at Rome, starting the current rut. She hasn’t won a match since May 11 in Rome.
The 46th-ranked Raducanu, who won the 2021 US Open, will face four-time major champion Naomi Osaka or Yulia Putintseva next.
In men’s action at the hard-court tournament, Cameron Norrie eliminated No. 2 seed Lorenzo Musetti 3-6, 6-2, 6-3.
The Italian hasn’t won a match since he suffered an injury last month at the French Open and needed to quit playing in the semifinals. Musetti lost in the first round at Wimbledon, a year after reaching the semifinals there.
Holger Rune, who was seeded third in Washington, withdrew before his match Tuesday because of a back injury.
In the night session, Venus Williams became the second-oldest woman to win a tour-level singles match in professional tennis at age 45, beating Peyton Stearns — 22 years her junior — 6-3, 6-4.
Williams also won in doubles on Monday.
The Associated Press contributed to this report.
