Career
On 21 March 2016, she reached her best singles ranking of world number 36 and peaked at world number 62 in doubles. 2015: Grand Slam debut Kasatkina made her senior Grand Slam debut at the United States Open in the main draw as a lucky loser in 2015, after Maria Sharapova withdrew due to injury. She beat Daria Gavrilova and Ana Konjuh to make the third round, losing to Kristina Mladenovic.
She also reached semifinals in singles defeating Carla Suárez Navarro in the quarterfinals before falling to Anastasia Pavlyuchenkova.
1 Serena Williams in the third round in 44 minutes. Then, in Saint St. Petersburg, she had the best result among the Russian participants, reaching the semifinals in singles, falling to Belinda Bencic.
1 duo Hingis/Mirza, whom they previously lost to in Saint St. Petersburg. The Russian duo also broke the best-ranked duo"s winning-streak record of 41 winning matches in a row.
Following this, Kasatkina debuted at the 2016 Banque Nationale de Paris Paribas Open where she reached her first Premier Mandatory quarterfinal with wins over Daniela Hantuchova, Anna-Lena Friedsam, Monica Puig and twelfth seed Timea Bacsinszky before falling to eighteenth seed Karolina Pliskova in straight sets.
Kasatkina also paired up with compatriot Elena Vesnina in the doubles but the pair lost in the second round to eventual finalists Karolina Pliskova and Julia Goerges in three sets. Following this tournament, Kasatkina reached a career high in singles and doubles. The next tournament Kasatkina entered for was the 2016 Miami Open where she defeated Kateryna Bondarenko in the first round.
In the second round she lost to Simona Halep.
Singles (7–0) Doubles (0–2) Girls" Singles participation Doubles (1–0) Singles Doubles This table is current through 2016 Indian Wells.