In the second round in Beijing, Bartunkova beat Magdalena Frech 6-2 6-2. Her next opponent was Aryna Sabalenka.
The third-round match against Sabalenka also ended without Bartunkova dropping a set: she won 6-4 6-3 to advance.
In the fourth round, Sinja Kraus took a set from Bartunkova, but Nikola came through with the victory: 6-0 4-6 6-3. Unlike her matches against Frech and Sabalenka, this one required a deciding set.