WATCH the WTA Tour LIVE in Australia on beIN SPORTS | Subscribe here and take advantage of our 7-day FREE TRIAL

Muchova triumphed 6-3 5-7 6-3 in two hours and 22 minutes against the No.2 seed to continue her impressive 2026 campaign.

It was a straightforward enough first set for Muchova, who converted two of her three break points, and conceded none, on her way to taking the lead.

After four consecutive holds to start the second, there were then four straight breaks of serve as both players struggled to control the set.

Gauff eventually took the second set with a third break coming in the 11th game, but the American could not carry that momentum into the decider.

After saving two break points in the opening game of the third, Muchova took Gauff's serve in the sixth game and did not look back, clinching victory with her first match point.

Muchova will face Elina Svitolina in the semi-finals after the No.4 seed defeated Linda Noskova 7-6 (7-2) 7-5 earlier in the day.