WASHINGTON — Emma Raducanu handed No. 7 seed Marta Kostyuk a 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.

Emma Raducanu has reached the semifinals at the D.C. Open by eliminating Maria Sakkari 6-4, 7-5. Friday's win put Raducanu in the final four at the biggest tournament where she’s made it that far since her surprising 2021 U.