Dayana Oleksandrivna Yastremska (Даяна Олександрівна Ястремська; born 15 May 2000) is a Ukrainian professional tennis player.
Dayana Yastremska was born on 15 May 2000 to Marina and Oleksandr Yastremsky in Odesa, the third-largest city in Ukraine.
She has a sister Ivanna who is six years younger.
Her father had been a volleyball player and also has served on the Odesa City Council.
When Yastremska was five years old, her grandfather Ivan introduced her to tennis.
After trying other sports such as gymnastics and swimming, she chose to focus on tennis, saying at the age of twelve, "I chose tennis because it is very hard and beautiful. I love work and I want to write my new history in tennis."
She entered her first tournament when she was seven and finished in third place, despite the event being open to children who were several years older.
Yastremska credits her parents for her success at tennis, saying, "When I was younger I had to sacrifice a lot of things but now I’m not regretting it... I have to say a big thank you to my parents because if they didn’t push me in the right moment then I don’t think I’d have the life I have right now."
2012
Yastremska had early success as a junior, finishing runner-up at the 12-and-under Junior Orange Bowl in 2012.
2014
She made her debut on the ITF Junior Circuit in March 2014 at the age of 13.
Towards the end of the year, she won her first title at a Grade 4 event in November.
With this success, she moved up to playing higher-level tournaments more regularly.
Yastremska reached a Grade 1 semifinal in July in Austria and won a Grade 2 title in August in Hungary.
She made her debut at the highest-level Grade A tournaments in October, reaching the quarterfinals at the Osaka Mayor's Cup in Japan.
She fared better in doubles, finishing runner-up to two Japanese players.
2015
Yastremska began playing low-level events on the ITF Women's Circuit in 2015.
Her best result of the year was a semifinal loss to Markéta Vondroušová at a $10k event in Sharm El Sheikh.
2016
Yastremska made her junior major debut at the 2016 Australian Open, where she made the singles quarterfinals.
In doubles, she made it to the final, losing to Anna Kalinskaya and Tereza Mihalíková alongside compatriot Anastasia Zarycká.
Yastremska only played Grade A tournaments the rest of the year.
At the Copa Gerdau, she lost in the singles semifinals to Amanda Anisimova.
In the doubles event, she partnered with Panna Udvardy to win the only Grade A title of her career, defeating the American team of Caty McNally and Natasha Subhash.
After a third round appearance in singles at the 2016 French Open, Yastremska concluded her junior career at Wimbledon.
At her last event, she made her only junior Grand Slam singles final.
After upsetting top seed Olesya Pervushina in the semifinals, she finished runner-up to Anastasia Potapova.
This helped her reach a career-high junior ranking of No. 6 in the world.
She won her first ITF title in March 2016 at the $25k event in Campinas, Brazil, where she came through qualifying and defeated No. 157 Alizé Lim in the final.
A month and a half later, she made her WTA main draw debut at the İstanbul Cup at the age of 15.
As a wildcard, she lost her opening-round match to Nao Hibino.
A year later, Yastremska was awarded another wildcard into the same tournament and defeated Andrea Petkovic for her first career WTA match win.
She made it to the quarterfinals, where she lost to Jana Čepelová despite having two chances to serve for the match.
2018
She made her debut in the top 100 and won two titles when she was 18 years old, including her first at the Hong Kong Open in 2018.
2019
She had a successful 2019 that helped her rise from No. 58 at the start of the year up to No. 22 by the end of the season.
Yastremska was suspended provisionally from competition at the start of 2021 after testing positive for mesterolone.
On 22 June 2021, the International Tennis Federation ruled that Yastremska was not responsible for the positive result, and that she was eligible to return to competition immediately.
She made her return to the tour at the Hamburg Open.
2020
She has been ranked as high as world No. 21 by the WTA, achieved in January 2020.
Yastremska has won three WTA Tour titles.
Her best performance at the majors is reaching the semifinals at the 2024 Australian Open.
A junior Grand Slam tournament runner-up in both singles and doubles, Yastremska had a quick breakthrough onto the WTA Tour.
