ofia Anna Kenin is 25 years old. Sofia or "Sonya", what people who are close to her call her, loves movies, friends, music, travel, playing with her sister and friends. Sonya, unlike most people, found her passion early in life, at age 5, when she first picked up her father’s tennis racket and started hitting tennis balls.

Watching Sonya’s amazing progress on the court with a local tennis coach, her parents could see her unique potential and remarkable abilities. They decided she would benefit from advanced training. Rick Macci, known for developing young tennis players in Broward County, started working with Sonya and was instrumental in recognizing her enormous talent, extraordinary hand/eye coordination, amazing concentration, form and foot work. Under Macci, Sonya began a more serious tennis training program several times a week. She appeared with Rick Macci in several United States Professional Tennis Association (USPTA) training videos designed to help tennis professionals teach younger players. Over the years, Sonya has taken lessons from other legendary coaches like Nick Bolletierri and Richard Lansdorp.

Sonya started playing United States Tennis Association (USTA) tournaments, Girls' 10 Singles, when she was seven, and in less than a year and a half she achieved a number one ranking in the State of Florida in the G10 Division. During that time she was able to focus on both her tennis and her school work while maintaining an "A" average.

Her outstanding talent and hard work at an early age gave her the opportunity to hit and interact with great champions such as Kim Clijsters, Anna Kournikova, John McEnroe, Venus Williams and Jim Courier. Articles about Sonya’s tennis success and pictures have appeared on the pages of many US and European (Belgium, Italy, Germany, Netherlands, United Kingdom) tennis newspapers and magazines. She has appeared in various charity events with John McEnroe, Anna Kornikova, Jim Courier and on several TV programs.

Sonya won the prestigious 'Little Mo' National Girls' 10 tournament in Austin, Texas; has been ranked number 1 in the Girls' 10 in the State of Florida; has been ranked number 1 in the Girls' 12 in the state of Florida; achieved Number 1 ranking in the USTA National Girls' 12, Girls' 14, Girls' 16 and Girls' 18. She has won multiple Super National Junior Tournaments and excelled in International Tournaments.

Sonya represented Team USA in tennis at the 2014 Summer Youth Olympics held August 2014 in Nanjing, China. She was a member of the USA Tennis Fed Cup Team and played doubles when they won the 2014 Junior Davis/Fed Cup Finals in San Luis Potosi, Mexico, 23-28 September 2014. Sonya won the 2014 Orange Bowl International Tennis Championships, a prestigious junior tennis tournament 'the Fifth Junior Grand Slam', held at the Frank Veltri Tennis Center in Plantation, Florida USA, December 8-14, 2014.

Sonya advanced to the 2017 US Open third round losing to 2006 champion Maria Sharapova. She turned pro in September 2017. In 2018 she made the Quarter Final at the ASB Classic, Auckland, NZ; Semifinal at the Mallorca Open, Mallorca, Spain; Third Round at the Niami Open; Second Round at the Wimbledon Championships; Third Round at the US Open; Semifinal at the Coupe Banque Nationale, Québec, Canada; Quarter Final at the Wuhan Open, Wuhan, China; and ended the year with Team USA in the Fed Cup Final with Hosts Czech Republic in Praha Czech Republic. Sonya also joined Team FILA with a sponsorship in November.

Sonya started 2019 by winning her first WTA Doubles Championship with Eugenie Bouchard at the ASB Classic, Auckland, NZ on 06 January 2019 and won her first WTA Singles Championship at the Hobart International Hobart, Tasmania, AU on 12 January 2019. She went to the Second Round at the Australian Open; Played on Team USA in the Fed Cup Team win over Switzerland in San Antonio, TX; Round Three at the Internazionali BNL d’Italia, Rome, Italy; Round of 16 at the French Open; and Round Three at the US Open, Flushing Meadows, New York. She won her first Grass Court Championship at the Mallorca Open in Mallorca, Spain in June. Sonya advanced to the Semifinals of the Rogers Cup, Toronto, Canada and the Western & Southern Open, Cincinnati, OH in August. She made it to the Quarter Final of the Zhengzhou Open, Zhengzhou, China and won her Fourth WTA title and her Third Singles Championship at the Guangzhou International Open, Guangzhou, China in September. Sonya won her Fifth WTA title with her partner, Bethanie Mattek-Sands, when they won the Women's Doubles Championship at the China Open in Beijing in October. Sonya ended the season by being named the 2019 WTA Most Improved Player of the Year.

Sonya started off the 2020 Season by winning her first Grand Slam Championship - the 2020 Australian Open Womens Championship in Melbourne, Australia on 01 February 2020. She followed up the Grand Slam Championship by winning the inaugural 2020 Open 6ème Sens in Lyon France, and in between, helped the USA Fed Cup Team secure a Team victory by winning the deciding Doubles match with her partner, Bethanie Mattek-Sands, over Team Latvia in Everett, WA, 07-08 February 2020. Many tournaments were canceled due to the COVID-19 pandemic, but the season was re-started in late June. Sonya reached Round 4 of the US Open, 31 August - 13 September, her best result in that tournament. The clay season started right after the US Open and Sonya reached the Final of the French Open in Paris, 27 September - 11 October and was the Runner-Up. Sonya ended the season by being named the 2020 WTA Player of the Year.

Sonya is currently ranked 85 in the WTA (10 NOVEMBER 2024).