Beatriz "Bia" Haddad Maia (; born 30 May 1996) is a Brazilian inactive professional tennis player. She reached career-high rankings of No. 10 in singles and doubles by the WTA, becoming the first Brazilian woman to enter the top 10 in singles in the Open Era. Her most notable results in singles are a major semifinal at the 2023 French Open and a major quarterfinal at the 2024 US Open. She was also a runner-up with Anna Danilina at the 2022 Australian Open.
Haddad Maia has won twelve WTA Tour titles, four in singles and eight in doubles. Playing for the Brazil Fed Cup team, she has a win–loss record of 33–14 (12–2 in doubles) as of August 2026.
In August 2026, Haddad Maia announced that she is taking an indefinite break from the tour due to mental struggles and a difficult run with form.
Early life and background Born in São Paulo to Ayrton Elias Maia Filho and Lais Scaff Haddad, Beatriz started playing tennis at the age of 5. She comes from a tennis family of Lebanese descent. Both her mother Lais Scaff Haddad, and her grandmother Arlette Scaff Haddad, were successful tennis players in Brazil. Her cousins Gabriela and Antonin are also former tennis players.
She is also the niece of the famous Brazilian singer, television host and composer Rolando Boldrin (1936–2022).
Her father Ayrton competed as a basketball player. Her paternal grandfather, Ayrton, also competed as a basketball player.
Haddad Maia's paternal grandmother, Teresa Maia, was a socio-environmental activist and was honored with a park named after her, the Teresa Maia Park, on the region of Granja Viana, São Paulo, where she used to live.
Haddad Maia gained a degree on Business Administration by distance learning at the Estácio de Sá University.
Career 2010–13: Beginnings, two junior major doubles finals In the beginning of her career, Haddad Maia received part of her training as an athlete first at the Esporte Clube Sírio and then at the Esporte Clube Pinheiros, both in São Paulo. Then, in 2010, she moved to Camboriú, in Santa Catarina, to work at the academy of Larri Passos, mentor and former coach of Gustavo Kuerten, going to live alone at only 14 years old.
Haddad Maia won her first doubles title at the ITF Circuit tournament in Mogi das Cruzes in September 2010, aged 14, playing alongside Flávia Guimarães Bueno, and her first singles title at the 10k event in Goiânia in 2011, aged 15. Haddad Maia peaked at No. 15 in the ITF junior rankings.
Her best achievement as a junior player was being runner-up at the French Open twice in 2012 and 2013, partnering with Paraguayan Montserrat González and Ecuadorian Doménica González, respectively. She was also a doubles semifinalist at the Wimbledon Championships in 2011 playing alongside Mayya Katsitadze from Russia.
She made her tour-level debut at the 2013 Brasil Tennis Cup in Florianópolis as a wildcard. She scored her first WTA Tour main-draw win against Hsu Chieh-yu in the first round, losing to Melinda Czink in the second. At the same tournament, Haddad made her tour-level doubles main-draw debut with partner Carla Forte.
2014–16: Turning professional
Haddad Maia turned professional in 2014. She was handed a wildcard at both the Rio Open and Brasil Tennis Cup main draws, losing in the first round of singles and doubles of both tournaments. In December of that year, she became Brazil's second highest ranked female tennis player.
In February 2015, she reached the quarterfinals of the Rio Open as a wildcard. Playing alongside Teliana Pereira, she reached the semifinals in the doubles competition but was forced to withdraw due to the injury sustained in the singles competition. In Bogotá, Haddad won her first WTA Tour doubles title with compatriot Paula Cristina Gonçalves, defeating Irina Falconi and Shelby Rogers in the final. In July 2015, she suffered a shoulder injury at the Pan American Games in Toronto, resulting in season-ending surgery.
In 2016, Haddad Maia was awarded wildcards for the Rio Open, Miami Open, and Brasil Tennis Cup.
Having fallen to the 367th position in the rankings by 18 July 2016, Haddad Maia recovered almost 200 spots during the second half of 2016, finishing the year with two consecutive 50k titles in Scottsdale and Waco.
2017: Top 100, first WTA Tour singles final
Haddad Maia started her 2017 season in Australia, playing two tournaments in Perth and winning the 25k event in Clare, South Australia in both singles and doubles with partner Genevieve Lorbergs. At Bogotá, she won her second title at the event. Playing with Argentinian Nadia Podoroska, she defeated Cepede Royg and Magda Linette in the final. During the European clay-court season, she entered the qualifying tournament at Stuttgart and lost to Kristýna Plíšková in the quarterfinals. The following week, Haddad had the best performance of her career at the 100k Open de Cagnes-sur-Mer, when she won the title without dropping a set, defeating Jil Teichmann in the final. As a result, she made her debut in the top 100 of the WTA rankings. At the French Open's qualifying tournament, Haddad Maia won all three of her qualifying matches, earning a spot in the main draw of a Grand Slam tournament for the first time in her career. Also on clay, she reached the semifinals of the Bol Open, a WTA 125 event, losing to the eventual champion, Aleksandra Krunić.
Haddad Maia received her first direct acceptance at a major main draw at Wimbledon, losing in the second round to Simona Halep. In the doubles competition, she reached the third round with Croatian partner Ana Konjuh, losing to Chan Hao-ching and Monica Niculescu.
Her first direct acceptance at a WTA Tour tournament Haddad gained at the Korean Open, where she reached her first singles final, losing to Jeļena Ostapenko.
2018: Injury and hiatus After the Australian Open, she played for Brazil at the American Fed Cup Zone six rubbers between both singles and doubles and won five of them.
2019–20: Doping suspension and return
Haddad Maia qualified for the Australian Open, reaching the second round of the main draw. She also reached the quarterfinals, as a qualifier, at the WTA Tour event in Acapulco in late February, losing to eventual champion Wang Yafan.
Again out of the qualifying, Haddad Maia reached the semifinals at the Copa Colsanitas, losing to eventual champion Amanda Anisimova. After retiring due to injury in the first round of qualifying at the French Open, she played a WTA Challenger event in Bol, Croatia during the second week of the French Open in early June.
In July 2019, she was provisionally suspended by the ITF for testing positive for ostarine (SARM S-22) and ligandrol (LGD-4033) at the event in Bol. In February 2020, Haddad Maia was served with a ten-month ban for the period July 2019 to May 2020 for unintentional use of the banned substances, as she was able to prove that the sources were contaminated supplements that she had been prescribed by her sports medicine specialists. The judgement declared that she bore "No Significant Fault or Negligence" for the violation, but given prior similar cases involving Brazilian players such as Marcelo Demoliner, Thomaz Bellucci and Igor Marcondes, the ITF determined that she should have been aware of the risks of using supplements and therefore issued her with the ban.
Having dropped to a ranking of 1342 during the suspension, she could not compete in that major event, having to start again in small tournaments. After widespread cancellation of tournaments due to the COVID-19 pandemic, she returned to play in September 2020 at the ITF event of Montemor-o-Novo in Portugal. Haddad won the title and three more on Portuguese soil in the next month. A hand injury led to an enchondroma diagnosis and forced her to go through a season-ending surgery.
2021: Indian Wells fourth round, back to top 100 In October, at the rescheduled Indian Wells Open, Haddad lost in qualifying but was awarded a spot in the main draw following the withdrawal of 29th seed Nadia Podoroska. She upset Karolína Plíšková to advance to the fourth round. The performance was enough to return to the top 100.
2022: Major doubles & WTA 1000 singles finals
She played doubles at Melbourne with Anna Danilina, and they reached the final, making Haddad only the third Brazilian woman in a final of a Grand Slam tournament, after Maria Bueno and Cláudia Monteiro. Haddad Maia rose to No. 40 in the WTA doubles rankings.
Her best performance after the Australian Open was in the Monterrey Open, reaching the semifinals, where she lost to eventual champion Leylah Fernandez. Haddad also managed another upset over a top-5 player at the Miami Open, beating world No. 3, Maria Sakkari, to reach the third round on a WTA 1000 level for the third time in her career.
In May, she won her first WTA 125 tournament, the Open de Saint-Malo, defeating Anna Blinkova in the final, and she won the doubles at the Trophee Lagardère in Paris with Mladenovic while also being runner-up in the singles to Claire Liu. As a result, Haddad Maia surpassed her previous career-high of 57 in the singles rankings with No. 49, becoming the first woman Brazilian in the WTA top 50 since Teliana Pereira in 2015.
Haddad won her biggest singles title at the WTA 250 Nottingham Open, while also winning the doubles tournament alongside Zhang Shuai. The results boosted her to the top 40 in the singles and top 30 in doubles rankings. She followed this victory up with facing Zhang in the final of the Birmingham Classic where Haddad won her second singles title, when the Chinese retired in the first set. The title propelled her into the top 30 in singles for the first time in her career. She joined Ons Jabeur who won in Berlin less than an hour earlier, and Iga Świątek as players to win multiple tour titles in the season. She was also the first Brazilian to win in the tournament 40-year history. Gisele Miró had the best previous result by a player from Brazil, reaching the second round in 1989. When Haddad lost her Eastbourne International semifinal match to Petra Kvitová, she had 12 wins and a walkover, the longest winning streak on grass courts since Serena Williams a decade earlier. Despite impressive form in the warm-up grass-court tournaments, she lost in the first round of Wimbledon.
Ranked No. 24 in singles at the start of the Canadian Open, she reached the final by defeating Martina Trevisan, Leylah Fernandez, Iga Świątek, and Belinda Bencic. As a result, she reached the top 20 in the singles rankings, on 15 August 2022. Haddad then breezed past former No. 1, Karolína Plíšková, to become the first Brazilian woman ever to reach a WTA 1000 final. She lost the final against Simona Halep, in three sets.
At the WTA 1000 Guadajalara Open, Haddad and Danilina reached the final, and she became the first Brazilian woman in history to qualify for the WTA Finals. Thanks to this result, she also entered the world's top 15 in doubles for the first time. In an unprecedented Brazilian final at the WTA 1000 level against Luisa Stefani and Storm Sanders, they ended runners-up in a tight result, with a deciding [10–8] in favour of Stefani/Sanders. Haddad Maia finished the season being awarded by the WTA as Most Improved Player of 2022.
2023: WTA 1000 doubles title, top 10, major semifinal in singles
At the WTA 500 in Abu Dhabi, she stood in the quarterfinals after more than a three-hour battle with Yulia Putintseva. Next, she reached the semifinals by defeating Elena Rybakina and recording a six-match winning streak against top-10 players. She lost the semifinal match to Belinda Bencic in straight sets. Nevertheless, she moved to a career-high ranking of No. 12 on 13 February 2023.
Playing with Laura Siegemund, Haddad reached her second WTA 1000 doubles final in Indian Wells.