Jil Teichmann

Jil Belén Teichmann (born 15 July 1997) is a Swiss professional tennis player who was born in Spain. She has been ranked as high as No. 41 in singles and No. 153 in doubles in the world by the Women's Tennis Association (WTA). She has won two WTA singles titles and one doubles title on the WTA 125K series, along with six singles and five doubles titles on the International Tennis Federation Circuit (ITF). In doubles, she also has one final on the WTA Tour but finished as runner-up. 
Since her junior ages, she started with good performances. Former junior No. 3 won one Grand Slam title in girls' doubles event at the 2014 US Open. Same year, she won gold medal for Switzerland in the mixed doubles at the Summer Youth Olympics in Nanjing. Her breakthrough as senior came in May 2019 when she won her first WTA title in Prague. In July same year, she won another WTA title after making her first top 10 win over Kiki Bertens. She continued progressing and then in March 2021 reached her first significant result, making it into the semifinal of the WTA 1000 Dubai Tennis Championships. This result provided her debut into the top 50.
Personal life and background.
Jil Teichmann was born on 15 July 1997 to mother Regula and father Jacques. She was born and raised in Barcelona, but her parents are from Zürich. Despite being born in Barcelona, Teichmann does not have a Spanish passport. In her youth, she tried various sports but then decided to play tennis on the professional level. She speaks five different languages.
Junior career.
Teichmann is former junior world No. 3 player. She made her debut on the ITF Junior Circuit in February 2011 at the Grade-4 Swiss Junior Trophy, where she reached the final in doubles. In September 2011, she won her first junior title at the Grade-5 Luzern Junior Competition in singles. In October 2012, she reached the quarterfinals of the Grade A Osaka Mayor's Cup in singles. She won her first doubles title at the Swiss Junior Trophy in February 2013. At her Grand Slam debut at the 2014 Australian Open, she reached the quarterfinals in doubles. In March 2014, she had success at the Grade A Campeonato Internacional Juvenil de Tenis de Porto Alegre, winning titles in both singles and doubles. 
She then continued with success, winning the title in doubles at the Grade A Trofeo Bonfiglio, and reached the semifinals in singles. At the 2014 Wimbledon, she also reached the semifinals in doubles. In July 2014, she reached singles quarterfinal and doubles semifinal of the European Junior Championships. She then won the 2014 US Open girls' doubles title along with İpek Soylu, defeating Vera Lapko and Tereza Mihalíková in the final. At the 2015 French Open, she reached quarterfinals in singles and semifinals in doubles. She reached another doubles Grand Slam quarterfinal at the 2015 Wimbledon. She finished her junior career at the 2015 European Junior Championships, where she reached final in singles. As a junior, she won one singles and eight doubles titles in total.
Professional career.
2013–18: First steps.
Teichmann made her debut at the ITF Women's Circuit at the $10K event in Kreuzlingen in February 2013. In June of the same year, she reached her first ITF semifinal at the $10K event in Essen. Year later, she reached another ITF semifinal, this time at the $25K event in Lenzerheide. In October 2014, she reached her first ITF final, but lost to Polina Leykina at the $10K event in Sharm El Sheikh. In August 2015, she won her first ITF title at the $15K event in Braunschweig, defeating Ekaterina Alexandrova in the final. In May 2016, she made her WTA Tour debut, playing at the Internationaux de Strasbourg, where she also recorded her first WTA win, defeating Kurumi Nara in the first round. At the 2016 US Open, she made her debut at the Grand Slams in qualifications, but failed to reach main-draw. In May 2017, she finished as runner-up at the $100K Open de Cagnes-sur-Mer, losing to Beatriz Haddad Maia in the final. In the late September, she reached second round of the Premier 5 Wuhan Open, that was her first appearance on that level. At the 2018 US Open, she made her Grand Slam main-draw debut and also recorded her first win on that level. 
2019–20: Breakthrough, two WTA singles titles, top 100.
Teichmann won her first WTA Tour singles title when she came through the qualifiers to win the Prague Open in May 2019, beating Karolína Muchová in final. The win took her into the top 100 in the WTA rankings. In July, she reached quarterfinal of the Swiss Open, where she lost to Tamara Korpatsch. The following week, she won the Palermo International, securing her first top-10 win with a victory over Kiki Bertens in the final. In August 2020, she reached another WTA final, but lost to Jennifer Brady at the Top Seed Open. In September 2020, she reached the quarterfinals of the Internationaux de Strasbourg, where she lost to Elina Svitolina.
2021: First WTA 1000 Semifinal, two top 10 wins, top 50.
The first two tournaments of the year were unsuccessful for Teichmann. First, she played at the Australian Open warm-up event Gippsland Trophy, where she lost to CoCo Gauff in the first round. Then she played at the Australian Open but again lost to Gauff. After these losses, she made progress by getting to the quarterfinal at the Phillip Island Trophy in Melbourne. She defeated three Romanian players in a row, Mihaela Buzărnescu, Monica Niculescu and Patricia Maria Țig, right before she faced a loss against Czech player Marie Bouzková. The fairytale continued for Teichmann given that the following week she advanced to her first Premier level semifinal at the Adelaide International. On her way to the semifinal, she defeated Kristina Mladenovic, Wang Qiang and Anastasija Sevastova. Eventual champion Iga Świątek prevailed in straight sets in the semifinal. Her next step was the WTA 1000 Dubai. After defeating qualifier Katarina Zavatska in the first round, she then upset top 10 Petra Kvitová and reached her first WTA 1000 third round. She followed this up with a win over Ons Jabeur and then took her revenge against Gauff for the two consecutive losses this year. The defeat over Gauff sent her into the semifinal where she faced Barbora Krejčíková and lost in straight sets. In her next tournament at the WTA 1000 Miami, she was forced to retire during the first round match against Paula Badosa. However, she then came to the Madrid Open, starting with an upset over world No. 5 Svitolina where she saved 6 match points to win the match. In the following round, she was eliminated by Badosa after turnover.
National representation.
Junior.
At the 2014 Summer Youth Olympics in China, she won the gold medal in mixed doubles, partnering Jan Zieliński. They defeated Ye Qiuyu of China and Jumpei Yamasaki of Japan in the final. 
Performance timelines.
"Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup and Olympic Games are included in win–loss records."
Singles.
"Current after the 2021 Rome."
Doubles.
"Current after the 2021 Madrid."
Notes
WTA Tour career earnings.
"As of 26 April 2021"