Iga Swiatek had to keep finding answers to get through the third round of the US Open. On Saturday, September 5, the No. 8 seed defeated Marie Bouzkova 7-6(3), 7-6(3) on Grandstand to set up a fourth-round meeting with Zheng Qinwen. The straight-sets score conceals an afternoon of sustained pressure.
Bouzkova extended the rallies and repeatedly made the Pole build her attacks again. The most dangerous passage came in the second set, when Swiatek faced three set points and saved them all. Once the sets reached their tiebreaks, however, the balance shifted. She never trailed in either breaker and won both by seven points to three.
The victory also contains a small statistical milestone. The US Open's official roundup records this as the first match of Swiatek's career in which she won two tiebreaks. The identical set scores say little about comfort; they better illustrate her ability to settle two close sets without needing a third.
The WTA's match statistics help explain the workload. Over two hours and 27 minutes, Swiatek lost serve five times and secured five breaks herself. She offset some of that instability with 35 winners and 15 points won from 17 trips to the net. According to the tour, the result extended her run of fourth-round appearances in New York to six consecutive years.
Her next opponent is already known. Zheng advanced after saving a match point and overturning a 5-0 deficit in the third set against Madison Keys, the subject of this blog's previous edition. Swiatek leads their head-to-head 7-1; the Chinese player's victory came at the 2024 Paris Olympics. That record supplies context without deciding the next contest in advance.
Swiatek enters the second week without dropping a set in her first three rounds. Keeping that sequence intact against Bouzkova required surviving the Czech's openings and executing more effectively in the tiebreaks. The gap between a clean scoreline and a demanding route to victory is what makes this match significant for the next stage of her campaign.
Reporting: official US Open and WTA match reports from September 5 and the US Open statistical roundup from September 6, 2026. The video shows highlights of this match, published by the tournament's official channel.