American qualifier Michael Zheng claimed the biggest win of his career by defeating Sebastian Korda in five sets at the 2026 Australian Open. The 21-year-old, ranked No. 174, overcame a comeback from the world No. 51 to advance to the second round. Zheng, a Columbia University senior and two-time NCAA champion, showcased remarkable poise in his first ATP main-draw match.
On Sunday night in Melbourne, Michael Zheng etched his name into Australian Open history with a gritty 6-4, 6-4, 3-6, 6-7(4), 6-3 victory over Sebastian Korda. The match, lasting nearly four hours, saw the young American squander a two-set lead before breaking early in the fifth set to secure the upset. Ranked No. 174, Zheng entered the tournament as a qualifier and senior at Columbia University, balancing academics with his breakout professional run.
Zheng's path to the main draw highlighted his resilience. In qualifying, he silenced the local crowd by defeating Cruz Hewitt, son of Australian legend Lleyton Hewitt, 6-3, 6-3. He followed with a 6-1, 3-6, 6-4 win over Tomás Barrios Vera and a dramatic 6-7(4), 6-3, 7-6(10) escape against Lukas Klein, saving a match point with a clutch ace in the final-set tiebreak.
His professional ascent has been rapid. A two-time back-to-back NCAA Singles Champion in 2024 and 2025—the first since Steve Johnson in 2012—Zheng surged into the top 200 in 2025 on a 15-match winning streak, capturing three consecutive ATP Challenger titles in Chicago, Columbus, and Tiburon.
For Korda, ranked No. 51 and a former Australian Open quarterfinalist, the loss was another setback in a career marked by injuries and unfulfilled potential. Despite firing 22 aces and 71 winners—nearly double Zheng's total—the 25-year-old faltered under pressure, allowing Zheng's patient, error-free play to guide him into mistakes. Korda, who peaked at world No. 15 in 2024, has struggled to maintain momentum since his 2021 breakout.
Zheng now faces No. 32 seed Corentin Moutet in the second round, guaranteeing a significant ranking boost and cementing his status as a rising Ivy League talent in modern tennis.