Overview
- Belinda Bencic defeated Solana Sierra 6-2, 6-2 to give Switzerland the opening lead in Perth.
- Sebastián Báez leveled the tie by beating Stan Wawrinka 7-5, 6-4 for his third win of the tournament.
- Báez posted efficient serving numbers in the win, landing 78% of first serves with three aces and one double fault.
- The mixed doubles decided the series, with Bencic and Jakub Paul beating Lourdes Carlé and Guido Andreozzi 6-3, 6-3.
- Switzerland advanced to the semifinals as Argentina’s breakthrough campaign concluded after qualifying from group play as the best second with a 4-2 record.