Jana Kovačková

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.^[4][5] Kovačková won the girls' U14 title at the 2024 Wimbledon.^[6][7] 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.^[8]

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.^[9] 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.^[10]

The Czech sisters reached the semifinals of another major jr., at the 2025 Wimbledon, losing to eight seeds and eventual champions Kristina Penickova and Vendula Valdmannová. Later that season, Kovačková and her sister were crowned champions at a major jr., winning the girls' doubles category at the 2025 US Open. The Czech pair defeated fourth seeds Laima Vladson and Jeline Vandromme in straight sets.^[11][12]

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.^[13][14]

She reached an ITF junior combined ranking of world No. 8 on 19 January 2026.^[15] 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 meshes.^[16][17][18]

In February 2025, Kovačková reached her first ITF final at the W15 event in Sharm-el-Sheikh, Egypt, losing to Bulgarian Isabella Shinikova.^[19] Two months later, she won her first professional singles title at a W35 tournament in Antalya, Türkiye, defeating Denislava Glushkova of Bulgaria in straight.^[20]

Kovačková also won three W15 doubles titles with his sister.^{[citation needed]}

Kovačková has a older sister, Alena, who is also a tennis player.^[21]