Iga Swiatek ended Emma Raducanu’s commendable Stuttgart open run during the pairs quarterfinal match.
The Pole beat the British teenager 6-4, 6-4 in straight sets to extend her own winning run to 21 matches.
The 1-hour and 45-minute victory over the reigning US Open champion marked Swiatek’s tour-leading 28th victory of the season as well.
Getting off to a fast start, Swiatek immediately broke Raducanu’s serve in the opening game of the match, and the Pole held that lead the whole way through the first set.
The players had an equal number of unforced errors in the first set, but Swiatek had nine more winners during that timeframe.
Raducanu, who won her first two clay-court matches at the WTA Tour event this week, continued to press in the following set, earning her first break of the day in the second game.
However, Swiatek used her deep, heavy shots to push Raducanu back in rallies and was rewarded with another break for a 2-1 lead.
Swiatek held that advantage up to 5-4, but the top seed was tested in that game when Raducanu’s defense drew Swiatek into errors.
The world no.1 had to stare down two break points at 15-40, but the Pole withstood them before converting her second match point with a sturdy forehand to seal an industrious win.
With the win, Swiatek now has won her last 13 matches in straight sets. The last set she dropped came against Angelique Kerber in the Indian Wells Round of 16 over a month ago.
By defeating World No.12 Raducanu, Swiatek has also won her last seven matches against the Top 20 opposition.
Her last loss against a Top 20 player came to then-No.1 Ashleigh Barty at Adelaide in January.
The Pole also improves to 4-0 against British players in her pro career.
Before topping Raducanu, Swiatek defeated Heather Watson at 2019 Toronto qualifying and 2021 Eastbourne and beat Harriet Dart at this year’s Australian Open.
Switek’s and Raducanu’s only previous meeting before Porsche Tennis Grand Prix came in Junior Wimbledon which the Pole won with ease.
In the semifinals, Swiatek will meet big-hitting Liudmila Samsonova, in their first meeting.
Samsonova earlier had knocked out the 2017 Stuttgart Open champion Laura Siegemund 7-5, 6-3.
