Anhelina Kalinina defeated Petra Kvitova 7–5, 6–4 at the Australian Open on hard court in the first round on 18 January 2023, upsetting the pre-match favourite. Kvitova entered as the odds-on selection at 1.6, but Kalinina, priced at 2.45, proved the stronger competitor across both sets, controlling the match with sufficient consistency to break down the two-time Wimbledon champion. The Ukrainian's composed performance in the opening set, where she edged a competitive first-set tiebreak situation, proved decisive in setting the tone; the second set followed a similar pattern as Kalinina maintained her level to secure the victory. The result marks a significant scalp for Kalinina and demonstrates her ability to trouble elite opposition on the hard courts at Melbourne Park.