SAN DIEGO (AP) — Unseeded Katie Boulter of England capped a run of upsets to win the San Diego Open singles title with a 5-7, 6-2, 6-2 victory over sixth-seeded Marta Kostyuk of Ukraine on Sunday.

The 28-year-old will face 11th seed Casper Ruud in the third round. However, fellow Britons Katie Boulter and Jack Draper lost their second-round matches. Boulter, Britain's women's number one ...