Bastad, Sweden: Katerina Siniakova of the Czech Republic clinched the Bastad clay court title on Sunday with a 6-3, 6-4 win over Caroline Wozniacki who has now lost five finals in 2017.
For 21-year-old Siniakova, the world No.56, it was a second career title after her maiden triumph in Shenzhen last year.
"It's really amazing for me," said Siniakova, who was runner-up at the Swedish venue in 2016. "Last year was really good, and so I'm so happy that I came back because I couldn't imagine a better week."
Heavy rain delayed the final by more than two hours before the action was further disrupted by medical time-outs for both players.
Wozniacki, who has a season-leading 42 wins under her belt, was aiming to take home her first title after finishing runner-up in Doha, Dubai, Miami, and Eastbourne.
However, her efforts were not helped by a right elbow injury which contributed to 39 unforced errors to just 19 winners.