Kateřina Siniaková

Kateřina Siniaková (born 10 May 1996) is a tennis player from the Czech Republic. Siniaková has a career-high singles ranking of No. 31, and a career-high doubles ranking of No. 1.

Siniaková is a former world number doubles player, having first held the ranking in October 2018 and holding the position on five occasions with her longest run being from September 2022 to September 2023. Siniaková has held the ranking for a total of 114 weeks. Playing for the Billie Jean King Cup team, Siniaková has a win–loss record of 10–8.

Singles

 * 🇩🇪 Bad Homburg (26 Jun 2023) – 🇨🇿 Kateřina Siniaková def. 🇮🇹 Lucia Bronzetti, 6–2, 7–6(7–5).
 * 🇭🇰 Hong Kong, China (9 Oct 2023) – 🇨🇦 Leylah Fernandez def. 🇨🇿 Kateřina Siniaková, 3–6, 6–4, 6–4.
 * 🇨🇳 Nanchang (16 Oct 2023) – 🇨🇿 Kateřina Siniaková def. 🇨🇿 Marie Bouzková, 1–6, 7–6(7–5), 7–6(7–4).

Doubles

 * 🇦🇺 Australian Open, Melbourne (23 Jan 2023) – 🇨🇿 Barbora Krejčíková / 🇨🇿 Kateřina Siniaková def. 🇯🇵 Shuko Aoyama / 🇯🇵 Ena Shibahara, 6–4, 6–3.
 * 🇩🇪 Berlin (19 Jun 2023) – 🇫🇷 Caroline Garcia / 🇧🇷 Luisa Stefani def. 🇨🇿 Kateřina Siniaková / 🇨🇿 Markéta Vondroušová, 4–6, 7–6(10–8), [10–4].
 * 🇺🇸 San Diego (11 Sep 2023) – 🇨🇿 Barbora Krejčíková / 🇨🇿 Kateřina Siniaková def. 🇺🇸 Danielle Collins / 🇺🇸 CoCo Vandeweghe, 6–1, 6–4.

Grand Slam

 * Singles
 * Doubles