History of Teodora Kostović in Timeline

Teodora Kostović is a Serbian professional tennis player. Her highest WTA singles ranking is world No. 265, achieved on August 18, 2025.

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June 2007: Birth of Teodora Kostović

On June 2007, Teodora Kostović, a Serbian professional tennis player, was born.

Others born on this day/year

2023: J300 singles titles

In 2023, Teodora Kostović secured J300 singles titles on clay courts in Plovdiv and Vrsar.

May 2024: ITF Women's World Tennis Tour debut

In May 2024, at the age of 16, Teodora Kostović made her professional debut on the ITF Women's World Tennis Tour in Kuršumlijska Banja, Serbia, reaching the singles semifinals of a W15 event, losing to Anja Stanković. Later in 2024, she played four additional tournaments in the same town without advancing past the quarterfinals.

September 2024: U18 European Junior Championships win

In September 2024, Teodora Kostović won the U18 European Junior Championships, defeating Alena Kovačková in the final.

2024: Five J300 titles

In 2024, Teodora Kostović won five J300 titles across all three major surfaces, including grass in Roehampton, hard courts in College Park, and clay in Bradenton, Oberpullendorf, and Bytom. She was also a finalist at the J500 event on clay in Offenbach and the J300 event on hard courts in Indian Wells.

February 2025: WTA Tour singles debut

In February 2025, Teodora Kostović made her WTA Tour singles debut at the WTA 500 Abu Dhabi Open, entering the qualifying draw via a wildcard. She won her first qualifying round match against Diane Parry but lost in the final qualifying round to McCartney Kessler.

March 2025: WTA 1000 Miami Open qualifying

In March 2025, Teodora Kostović received a wildcard into the qualifying rounds of the WTA 1000 Miami Open. Ranked No. 756, she defeated world No. 99 Olivia Gadecki in the first round but lost to Greet Minnen in the final qualifying round.

April 2025: WTA 1000 Madrid main draw qualification

In April 2025, Teodora Kostović qualified for the main draw of the WTA 1000 in Madrid after receiving a wildcard for the qualifying rounds. She defeated Elena-Gabriela Ruse and Lucrezia Stefanini in the qualifying rounds. Ranked No. 625, she was the lowest-ranked participant in the main draw aside from those using a protected ranking and lost in the first round to Eva Lys.

April 2025: Billie Jean King Cup nomination and debut

In April 2025, Teodora Kostović received her first nomination to represent Serbia in the Billie Jean King Cup, and on April 10, 2025, she made her debut, recording a victory over Klaudija Bubelytė of Lithuania.