Elena Rybakina claimed the world No. 1 ranking at the U.S. Open following a quarterfinal win over Zheng Qinwen, according to match reports. Representing Kazakhstan, Rybakina secured a 3-6, 6-1, 6-4 victory on Wednesday in New York to overtake Aryna Sabalenka at the top of the WTA leaderboard just days before facing her opponent in the tournament final.
The Ascent to No. 1 During a Grand Slam Tournament
Taking over the top ranking midway through a major event creates an unusual dynamic for players focused strictly on match outcomes. According to a news conference cited by tour coverage, Rybakina acknowledged the milestone while keeping her immediate attention on competition. “It’s a great achievement, and I feel like you will appreciate and think about it even more when you finish your career,” Rybakina stated. She added that while it is nice to reflect later on tournament victories and rankings, she wants to keep winning titles, noting, “all my thoughts are just for the next match.”
Did you know? Elena Rybakina is the first tennis player representing Kazakhstan to reach the top of the rankings, building on a season that includes an Australian Open title victory over Aryna Sabalenka and a win at the Stuttgart Tennis Grand Prix.
Tour Leadership and Coaching Context
Rybakina’s rise to the top spot coincides with a period of scrutiny involving tour leadership and her coaching staff. In February of 2025, according to tour records, the WTA barred her coach, Stefano Vukov, from coaching and obtaining credentials for a year following an investigation. The inquiry concluded that Vukov had engaged “in abuse of authority and abusive conduct” toward Rybakina, which included “compromising or attempting to compromise (her) psychological, physical or emotional well-being.” Vukov has denied breaching the WTA’s code, and Rybakina has repeatedly stated that Vukov’s conduct towards her has never been abusive. Following an appeal, Vukov’s ban was lifted in August 2025, and he has remained courtside during her matches in New York.
Instability at the Top of the WTA Leaderboard
The 2026 season has featured notable shifts and inconsistency among the sport’s top-ranked competitors. While Rybakina maintained a steady presence—accumulating 48 victories this season, trailing only Jessica Pegula’s total of 50—other top players experienced turbulent stretches. Mirra Andreeva won the French Open at 19, and Linda Nosková won Wimbledon at 21. Meanwhile, Aryna Sabalenka spent 99 weeks as the world No. 1 after surpassing Świątek in surprising fashion in 2024, but faced a sharp decline after reaching the Australian Open final in January. Sabalenka suffered early exits at the Madrid Open against Hailey Baptiste, the French Open against Diana Shnaider, and the Berlin Open against Jessica Pegula. Świątek also navigated a difficult year marked by a coaching change and an early loss to Zheng in the fourth round of the U.S. Open.

Frequently Asked Questions
Who did Elena Rybakina defeat to capture the world No. 1 ranking?
Elena Rybakina secured the top spot by defeating China’s Zheng Qinwen, 3-6, 6-1, 6-4 in the U.S. Open quarterfinals.
How many wins does Elena Rybakina have on the WTA tour this season?
Rybakina has notched 48 wins on the WTA tour this year, which places her second behind Jessica Pegula’s 50.
Who is Elena Rybakina facing in the U.S. Open final?
Rybakina will face Sabalenka on Arthur Ashe Stadium in the final.
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