On January 17, Beijing time, the first matchday of the Australian Open began to compete, in the first match of the night court at rodrawall Stadium, the world's number one Barty played on the ground, and her opponent was Tesulenko, who was ranked 119th in the world. After two sets of competition, Barty easily swept the opponent and successfully reached the second round of the women's singles.
Barty took the lead in the first set, she easily saved the first set, and in the second set Barty broke to take a 2-0 lead. In the 3rd inning, Barty deflected two break points to save her serve, and in the 4th set she broke again to take a 4-0 lead. In the 6th set, Barty broke for the third time in the opposing serve and won the first set 6-0.
In the second set, Barty broke through in the second set to take a 2-0 lead. In the 4th set, Barty broke again to take a 4-0 lead. Barty took a 5-0 lead after the 5th set, Tesulenko didn't win his first set until set 6 of the second set, and Barty saved his serve easily in the 7th set to win the second set 6-1.
In a 54-minute match, the tournament's top seed Barty dropped two straight sets to sweep Tesulenko 6-0, 6-1 to advance. In the second round, Barty's opponent was Italy's pick Bronzetti, who broke through from the qualifiers.