[2] Born in Prague, the capital of the Czech Republic,[3] Brenda is the younger sister of fellow professional tennis player, Linda Fruhvirtová.

[9] A few weeks later, Fruhvirtová was invited to participate in the Ultimate Tennis Showdown (UTS) at the Mouratoglou Academy.

Singles: Doubles: Aged just 14, Fruhvirtová made her professional debut at the WTA 125 tournament in Seoul in December, where she defeated Jeong Moon in the first round,[11] before losing to eighth seed Yuki Naito in her next match.

Fruhvirtová made her WTA Tour debut, after being awarded a wildcard into the Abierto Zapopan qualifying draw; she defeated former world No.

5, Sara Errani, and Leonie Küng to reach the main draw and make her WTA Tour debut,[14] where she lost in straight sets to the sixth seed and former world No.

She recorded her first win at a major defeating Ana Bogdan, and reached the top 100 in the rankings.

[18] Having made it through qualifying, Fruhvirtová defeated 24th seed Mirra Andreeva in the first round at the 2024 Wimbledon Championships for her first main draw win at the grass-court major,[19] before losing to Paula Badosa in her next match.