MASON, Ohio—Top-ranked Iga Swiatek overcame a rough start and a dispute with the chair umpire to defeat Wimbledon champion Marketa Vondrousova 7–6, 6–1 on Friday and advance to the semifinals of the Western & Southern Open, a tournament she has never won.
Vondrousova was up 5–4 and serving for the first set before Swiatek broke, eventually winning a tiebreaker before cruising in the second.
