To reach the quarter-finals, the top-seeded Yastremska achieved a comeback win against American Ann Li, with scores of 1:6, 7:5, 6:2, as reported by Ukrinform.
Yastremska's next opponent will be American McCartney Kessler, who defeated Argentine Maria Lourdes Carle with a score of 6:2, 6:2.
The tournament in Hobart will conclude on January 11.
Photo: Getty Images.