On September 11, Katerina Siniakova and Taylor Townsend triumphed in the US Open women's doubles final, defeating wild cards Ashlyn Krueger and Robin Montgomery 5-7, 6-0, 6-2. This victory marked the 12th Grand Slam doubles title of Siniakova's career and established her as the first player to complete a career Grand Slam with two different partners, having previously achieved the feat with Barbora Krejcikova in 2022.
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At 30 years old, Siniakova is currently ranked world No. 1 in doubles for the seventh time and has secured seven titles this season. While the debate over who ranks as the best doubles player of all time is often settled in favor of Martina Navratilova, Siniakova’s achievements in the 21st century present a compelling case for her inclusion among the greats.
Siniakova's impressive statistics include a total of 26 titles across her career as well as five year-end No. 1 finishes, and she has spent 204 weeks at the top of the doubles rankings, placing her second in history behind Navratilova. Additionally, she has won two Olympic gold medals and one major in mixed doubles, further showcasing her versatility and success on the court.
Beginning her rise in doubles in 2014, Siniakova first secured a WTA title with Aleksandra Krunić. However, it was her partnership with Krejcikova that truly propelled her career forward. Together, they had notable success, winning majors and Olympic gold, and achieving a career Grand Slam together.
Siniakova's adaptability is evident in her multiple partnerships, achieving major wins with different players including Coco Gauff, with whom she won Roland Garros in 2024. Her ability to partner effectively with a variety of players has set her apart from many of her contemporaries.
Her achievements in rankings are further enhanced by the fact that she holds a Grand Slam win rate of approximately 81%, and she remains a key player going into the final stages of her career, presenting strong arguments for her as possibly the best doubles player this century.
In her singles career, Siniakova has not reached the same level of acclaim but has secured five WTA titles and is a consistent top-50 player. However, her recent singles results have been less favorable, dropping her ranking as the season progresses.
Looking ahead, Siniakova is approaching milestones that could further solidify her legacy, including potentially surpassing Navratilova's records for weeks at No. 1 and year-end finishes. As discussions about the greatest doubles player of the 21st century evolve, Siniakova's ongoing success ensures her position remains a focal point.