World number one Iga Swiatek beat Germany's Laura Siegemund to win the Poland Open, her home tournament.
The 22-year-old only completed her semi-final earlier in the day after her match with Yanina Wickmayer was suspended on Saturday night due to darkness at 6-1 5-5.
Swiatek eventually claimed a 6-1 7-6 (8-6) victory over the Belgian.
However, she raced through the championship match against Siegemund in just 68 minutes without facing a single break point.
"It's not easy to play in Warsaw, but I'm so happy that we could manage and do everything we could today, after a pretty tiring day yesterday," said Swiatek, who didn't drop a set throughout the tournament.