Swatik faced a tough group for a long time with Croatian Petra Martic, who came back 5-5 after trailing 5-3 in the second set. It eventually became 6-2 7-5 for the Poles. The 22-year-old Swiatek used her fourth game point after 1 hour and 43 minutes.
Swiatek, who reached the fourth round at Wimbledon just two years ago, has yet to drop a set in three matches. She only gave up thirteen matches in London. In the fourth round, 14th seed Belinda Bencic, the reigning Olympic champion, was her opponent.
Earlier in the day, Sabalenka needed three sets to avoid elimination. The Belarusian fought 2-6, 7-5, 6-2 against Frenchman Varvara Gracheva, who was leading 6-2, 5-4. Gracheva is number 41 in the world.
Elina Svitolina, coached by coach Raimon Sluiter, also advanced to the fourth round. The Ukrainian, who conceded a wild card, defeated American Sofia Kenin 7-6 (3) 6-2. The 28-year-old Svitolina, a semi-finalist in London in 2019, recently returned after a pregnancy.
Fourth seed Jessica Pegula had few problems with Italy’s Elisabetta Cocciaretto and also qualified for the last 16: 6-4, 6-0.