Jana Kovačková

Jana Kovačková (born 13 June 2010) is a Czech tennis player. She has a career-high singles ranking by the WTA of No. 469, achieved on 16 March 2026, and a best doubles ranking of No. 221, reached on 27 July 2026.

Kovačková has won all four junior major titles in girls' doubles, winning all four in consecutive tournaments, two with her sister Alena Kovačková and two with compatriot Kateřina Zajíčková, the first player to complete a non-calendar-year Grand Slam in girls doubles.

Career

Juniors A member of TK Sparta Prague, she was part of the Czech U14 World Team Championships winning side with a 2–1 win against the United States alongside Kateřina Zajíčková and Laura Chlumská in 2024. Kovačková won the girls' U14 title at the 2024 Wimbledon. In the 2024 season, she was the most successful player on the ITF Junior Circuit, with a total of 17 titles combined, eight in singles and nine in doubles.

Kovačková played in the girls' doubles event at the 2025 Australian Open, with her sister Alena. Playing as a pair, they reached the semifinals, losing to twin sisters Kristina and Annika Penickova. The Czech sisters paired up again to play at the 2025 French Open, and they defeated Penickova sisters in the semifinals, winning on a match tiebreak. In the final, they lost to German pair Eva Bennemann and Sonja Zhenikhova.

The Czech sisters reached 2025 the semifinals of another major, at Wimbledon, losing to eighth- seeded and eventual champions, Kristina Penickova and Vendula Valdmannová. Later that season, Kovačková and her sister were crowned champions at a major, winning the girls' doubles at the 2025 US Open. The Czech pair defeated fourth seeds Laima Vladson and Jeline Vandromme, in straight sets.

Partnering again with her sister, Kovačková won her second girls' doubles title at the 2026 Australian Open. The pair did not drop a set on their run and defeated Tereza Heřmanová and Denisa Žoldáková in a first all-Czech junior final.

She reached an ITF junior combined ranking of world No. 8 on 19 January 2026. In June 2026, she reached the final of the girls' doubles at the 2026 French Open playing alongside fellow-Czech player Kateřina Zajíčková, with the pair losing just 17 games across the five matches.

Alongside Zajíčková, she also won the girls' doubles at the 2026 Wimbledon Championships, the following month, for her fourth consecutive junior major doubles title. Kovačková joked after the final that "I'll probably start playing only doubles and not singles, they're useless". She had been the third seed in the girls' singles, but was defeated in the round-of-16. In doing so, she became the first player to complete a non-calendar-year Grand Slam in girls doubles.

Professional In February 2025, Kovačková reached her first ITF final at the W15 event in Sharm El Sheikh, Egypt, losing to Bulgarian player Isabella Shinikova. Two months later, she won her first singles title at a W35 tournament in Antalya, Türkiye, defeating Denislava Glushkova of Bulgaria in straight sets.

Kovačková also won three W15 doubles titles with her sister.

Personal life Kovačková's father, Petr Kovačka, was a tennis player. She has an older sister, Alena, who is also a tennis player.

ITF Circuit finals

Singles: 6 (3 titles, 3 runner-ups) LegendW50 tournaments (1–0)W35 tournaments (1–0)W15 tournaments (1–3)Finals by surfaceHard (1–2)Clay (2–1)

Doubles: 8 (8 titles) LegendW75 tournaments (2–0)W40/50 tournaments (2–0)W25/35 tournaments (1–0)W15 tournaments (3–0)Finals by surfaceHard (3–0)Clay (5–0)

Junior Grand Slam tournament finals

Doubles: 5 (4 titles, 1 runner up)