Defending champion Naomi Osaka defeated Zheng Sensei of China 6-2, 6-4 to enter the third round of the Australian Open women's singles. They will now face 15-year-old Coco Gau, while Novak Djokovic has also won his match easily. Coco defeated veteran Sorana Christie 4-6 6-3 7-5. She defeated seven-time Grand Slam champion, Venus Williams, at Wimbledon last year. 2019 runner-up Petra Quitova defeated Paula Badosa 7-5, 7-5 and made her place in the next round.
Former world No. 1 Carolyn Wozniacki defeated Ukraine's Diana Yastremska 7-5, 7-5. World's No. 1 player Ashley Barty of Australia defeated Polona Herzog 6–1, 6–4. In the men's category, Djokovic defeated Japanese wildcard stripper Tatsuma Ito 6–1, 6–4, 6–2. 8 matches of the first round of the women's singles category could not be held on Tuesday due to several matches being suspended due to rain on Monday.
14th ranked Sophia Kainin, 18th ranked Allison Riske, 25th ranked Ekaterina Alexandrova and Julia Georges also reached the next round. Julia defeated 13th seed Petra Martich 4-6 6-3 7-5. In the first round match, Carla Suarez Navarro defeated 11th seed Arena Sabalenka 7-6, 7-6. Taylor defeated America's Jessica Pegula 6-4, 7-6.