Teodora KostoviÃÂ (; born 28 June 2007) is a Serbian professional tennis player. On 16 March 2026, she reached her best singles ranking of world No. 159 on the WTA.
Kostoviàcomes from a sports-focused family and has a brother named Miloà ¡. She began playing tennis at age five and reportedly expressed an early ambition to become the world No. 1 ranked player.
Competing on the ITF Junior Circuit, KostoviÃÂ achieved a career-high ranking of world No. 6.
She won J300 singles titles on clay courts in Plovdiv and Vrsar in 2023.
In 2024, she claimed five J300 titles across all three major surfaces. Her victories included wins on grass in Roehampton, on hard courts in College Park, and on clay in Bradenton, Oberpullendorf, and Bytom. That same year, she was also a finalist at the J500 event on clay in Offenbach, and the J300 event on hard courts in Indian Wells.
In September 2024, she won the U18 European Junior Championships, defeating Alena KovaÃÂková in the final.
Grand Slam performance
<u>Singles:</u>
<u>Doubles:</u>
Aged 16, Kostoviàmade her professional debut on the ITF Women's World Tennis Tour in Kurà ¡umlijska Banja, Serbia. In May 2024, she reached the singles semifinals of a W15 event there, losing in three sets to compatriot Anja StankoviÃÂ. Later in 2024, she played four additional tournaments in the same town at the W15 and W75 levels, not advancing past the quarterfinals in any of them.
Kostoviàmade her WTA Tour singles debut in February 2025 at the WTA 500 Abu Dhabi Open, entering the qualifying draw via a wildcard earned through a junior tournament result. In the first qualifying round, she won the first set 6âÂÂ2 against Diane Parry before the French player retired from the match. In the final qualifying round, Kostoviàinitially led 4âÂÂ1 against McCartney Kessler but ultimately lost 4âÂÂ6, 2âÂÂ6.
The following month, in March 2025, she received a wildcard into the qualifying rounds of the WTA 1000 Miami Open. Ranked No. 756 at the time, KostoviÃÂ defeated world No. 99 and 17th qualifying seed Olivia Gadecki in the first round. She lost to Greet Minnen in the final qualifying round.
In April 2025, KostoviÃÂ received a wildcard for the qualifying rounds and subsequently qualified for the main draw of the WTA 1000 in Madrid. She achieved this by defeating top-100 player Elena-Gabriela Ruse in the first qualifying round and then Lucrezia Stefanini in the final qualifying round. Entering the main draw of Madrid, KostoviÃÂ, ranked No. 625, was the lowest-ranked participant aside from those using a protected ranking. She was also the youngest player in the main draw. In the first round, she lost to Eva Lys in straight sets.
Kostoviàreceived her first nomination to represent Serbia in the Billie Jean King Cup in April 2025, under the captaincy of Duà ¡an VemiÃÂ, for the Europe/Africa Zone Group I event against Slovenia and Lithuania, and later in the promotional play-off tie against Croatia. She made her debut for the national team on 10 April 2025, recording a victory over Klaudija Bubelytàof Lithuania.
Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup, United Cup, Hopman Cup and Olympic Games are included in winâÂÂloss records.
Current through the 2025 Miami Open.