CiCi Bellis

At the 2020 Australian Open, Bellis defeated 22nd ranked Karolina Muchova in the second round before falling to world No. 17, Elise Mertens.

This table is current through 2020 Australian Open.

Bellis defeated world No. 5, Karolína Plíšková, and reached the quarterfinals at the Qatar Open. Reoccurring wrist and elbow injuries sidelined Bellis after March. Bellis eventually had four surgeries in June, September, November and March of 2019 on her wrist, arm and elbow.

Bellis's biggest professional title came at the Hawaii Tennis Open in 2016, a WTA 125K event. She has also won six singles titles and two doubles titles on the ITF Women's Circuit. Bellis had an accomplished junior season the same year she played in her first US Open, finishing the 2014 season as the ITF Junior World Champion for holding the year-end world No. 1 junior ranking. She also won the USTA National Junior Championship that year at 15 to become the youngest winner of the event since Lindsay Davenport in 1991.

Bellis began the 2016 season ranked No. 248 and got off to a slow start. She did not return to the top 200 until the summer, after playing in the Bank of the West Classic, a Premier tournament at Stanford. Bellis received a wild card into the main draw and defeated No. 38 Jeļena Ostapenko and compatriot Sachia Vickery before losing to top seed Venus Williams. This was also her first WTA quarterfinal. The following month, Bellis successfully qualified for the main draw of the US Open. She then improved on her result from two years earlier by reaching the third round, where she lost to the eventual champion Angelique Kerber in straight sets. Her performance at the US Open took her to a new career-high ranking of No. 120 and helped convince her to turn professional.

Bellis closed out her junior career by reaching the semifinals at the 2015 French Open, her best singles result at a Grand Slam tournament and the only junior event she played that year.

A month after the US Open, Bellis won her first two professional titles in singles in back-to-back weeks, both in South Carolina at the $25K level. In 2015, Bellis received a wild card into the main draw of the Miami Open, her first Premier Mandatory tournament. She avenged her US Open loss to Zarina Diyas in the second round before losing to No. 1 Serena Williams, the eventual champion. This helped Bellis crack the top 200 of the WTA rankings for the first time. She would reach a career-best ranking of No. 152 in the world during the summer. Towards the end of the year, Bellis attempted to qualify for the US Open, but fell one match short.

As a junior in the United States, Bellis won five USTA National Junior Singles Championships and was ranked No. 1 in the G18s in April, 2014.

In 2014, Bellis played only Grade-B1, Grade-1, and Grade-A tournaments, the three highest levels on the junior circuit. She had an impressive start to the year by reaching the final at her first five events, winning four of them. Specifically, she won the Copa del Café in Costa Rica, the USTA International Spring Championships and the Easter Bowl in the United States, and the Trofeo Bonfiglio in Italy. She followed up this success by also reaching the French Open doubles final with Markéta Vondroušová, which they lost in a match tiebreak. In contrast, Bellis struggled at the three Grand Slam singles events she entered that year, with her best result being a third round appearance at the French Open. Nonetheless, she took over the No. 1 ITF junior rankings in early September on the strength of those four titles in the first half of the season.

In August 2014, Bellis won the USTA Girls 18s National Championship, defeating Tornado Alicia Black in the final. At the age of 15 years and four months, she became the youngest winner of the event since Lindsay Davenport in 1991. With the victory, she also earned a wild card into the main draw of the US Open. Bellis and Black were then both selected to represent the United States at the Junior Fed Cup along with Sofia Kenin. The trio won the title and Bellis went undefeated in seven matches. Later in the year, she also reached the semifinals at the Orange Bowl. Bellis finished the season as only the second American since 1982 to be No. 1 in the year-end ITF girls' junior rankings, earning her the title of 2014 ITF World Champion.

Bellis played her first few low-level professional events in early 2014, and won a doubles title at the $10K event in Orlando in March. She entered the 2014 US Open ranked No. 1208 with just two professional match wins in singles, both against players ranked outside the top 300. Nonetheless, she earned a wild card into the tournament as the USTA junior national champion, making her the youngest woman in the main draw of a Grand Slam event since Alizé Cornet at the 2005 French Open, and the youngest in the main draw of the US Open since 2004. In her WTA Tour-level debut, she upset 12th seed Dominika Cibulková, who was the runner-up at the Australian Open earlier in the year. With the victory, she became the youngest player to win a match at the US Open since Anna Kournikova reached the fourth round of the 1996 US Open at age 15. Bellis was also the youngest American to win a match at the US Open since Mary Joe Fernández in 1986. She was unable to win her next match, losing in three set loss to 20 year old Zarina Diyas in the second round.

Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup and Olympic Games are included in Win–Loss records.

Bellis began playing on the ITF Junior Circuit in late 2012 and mostly participated in low-level Grade-4 tournaments through the end of 2013. Her biggest triumph in the 2013 season was winning Les Petits As in France, a prestigious tournament for juniors between 12 and 14 years old.

Bellis was forced to skip the Australian hard-court season in January due to left leg problems with her hip and hamstring. She played her first main draw of the year at the Dubai Championships, where she made her first Premier 5-quarterfinal and extended her main-draw win streak at all levels to 17 matches. In the third round, she defeated world No. 6, Agnieszka Radwańska, for her first top-ten victory before falling to Caroline Wozniacki. The upset made Bellis the youngest American to defeat a top-ten opponent since 2009.

Catherine Cartan "CiCi" Bellis (born April 8, 1999) is an American professional tennis player. In early 2018, she was the second youngest player in the top 100 of the WTA rankings and has a career-high of No. 35, which she achieved in August 2017. Bellis is known for winning a match at the 2014 US Open as a 15 year old against a top-20 opponent, making her the youngest match-winner at the US Open since 1996.