6, Sofia Kenin, in the final to become the first Polish[a] player to win a major singles title and the lowest-ranked French Open champion in the history of the WTA rankings.

[46] Seeded 15th, Świątek won her first career WTA 1000-title at the Italian Open, defeating former champion Karolína Plíšková in just 46 minutes without the loss of a single game.

[47] Świątek became the third player to win a title after saving match point en route in 2021, alongside Naomi Osaka at the Australian Open and Ashleigh Barty in Miami.

She opened her title defense winning against Kaja Juvan in the first round, and then defeated Rebecca Peterson, Anett Kontaveit and Marta Kostyuk.

In doubles, seeded 14th with Bethanie Mattek-Sands as a pair, playing just their third event together, they reached the final[51] where they were defeated by Barbora Krejčíková and Kateřina Siniaková in straight sets.

[69] At the 2022 WTA Finals held in Fort Worth, Texas, Świątek won the group stage without dropping a set, defeating Daria Kasatkina, Caroline Garcia and Coco Gauff, respectively.

[80][81] After improvement on the grass court with a quarterfinal performance at Wimbledon,[82] which ended her 14-match win streak,[83] she won her home tournament at the Poland Open.

[93] In the third round of the Australian Open, she was upset by Linda Nosková in three sets and as a result of this loss her 18 match winning streak, which started in September 2023, came to an end.

[104] In April, Świątek entered the Stuttgart Open as a two-time defending champion and reached the semifinal where she lost to Elena Rybakina in three sets,[105] which ended her 10-match winning streak in the tournament.

[116] In the final, she beat again Aryna Sabalenka, this time in straight sets, becoming the most successful Polish tennis player in terms of the number of titles won surpassing Agnieszka Radwańska with 21.

[124] Having not played since her French Open triumph, Świątek lost in round three at the 2024 Wimbledon Championships to Yulia Putintseva, thus ending her 21-match winning streak.

The drug was found to be a contaminant in a sleep medication melatonin she was taking, so she was handed a penalty that was at the lowest end of the range for "No Significant Fault or Negligence".

Although she lost in the quarterfinals in singles to Clara Burel,[142] she partnered with Slovenian Kaja Juvan to win the gold medal in doubles.

The following year, the format was changed so that Poland only needed to finish in the top two out of three teams in their round-robin group to reach the promotional play-off.

[145] The following edition in 2022 had Poland facing Romania in the qualifying round, with Świątek winning her two games to help the team move on to the Finals.

[147] The rib injury Świątek encountered shortly after exiting the 2023 Indian Wells Open also caused her to miss Poland's 2023 Billie Jean King cup qualifier against Kazakhstan in Astana.

[149] Świątek helped Poland reach the semifinals of the 2024 BJK Cup with wins in singles and in doubles partnering compatriot Katarzyna Kawa over Czechia.

[114][153] Their most lauded match is the 2024 Madrid Open final in which Świątek defeated defending champion Sabalenka in three sets after 3 hours and 11 minutes, also saving three championship points in the process.

The basis of Świątek's game was described by tennis journalist Christopher Clarey for The New York Times as: her sliding ability, allowing her to defend from the corners à la Kim Clijsters and Novak Djokovic, a "sprinter's speed" when moving forward to the net, power and topspin akin to her idol Rafael Nadal, and mental strength forged through sports psychology.

[citation needed] Świątek finished runner-up to Simona Halep in the voting for the WTA Fan Favorite Singles Player of the Year award in 2019.

To celebrate the victory at the 2022 French Open with a Tecnifibre racquet and to recognise the female athlete, the company changed its marketing name to Swiateknifibre and its trademark to the colours white and red for seven days.

After winning her third major title at the 2022 US Open, Świątek parted ways with her long-term manager, and began to be represented by IMG with agent Max Eisenbud.

Besides the racket Świątek also put her signed Tokyo Olympics 2020 kit, her signature cap and multiple tennis balls with autographs up for auction.

She also donated the shirt she wore in the final, tennis balls and her cap to the school, all signed for auction to raise money for one of the students who needed urgent and expensive medical treatment.

[213] On 10 October 2021, Świątek donated $50,000 of her prize money in support of World Mental Health Day, after progressing to the last 16 of the Indian Wells Open.

[217][218][219][220] On 23 July 2022, Świątek hosted a charity tennis event in Kraków, Poland to raise funds for children and teenagers impacted by the war in Ukraine.

Świątek stated, "I hope that we can see each other in large numbers in TAURON Arena Krakow and in front of the television to show the strength of sport when it unites us in helping and gives us at least a little joy.

"[221] Świątek later announced on Twitter that the event has raised over 2,5 mln złoty (over €500,000), which would be spread between United 24, Elina Svitolina Foundation and UNICEF Poland.

[223][224] On 9 January 2023, Świątek took to Twitter and Instagram to announce that her 'Iga & Friends' and '1ga' T-shirts will be available for sale at Allegro Charity, where she and UNICEF Poland have once again joined forces to raise funds for children in war-torn Ukraine.

[228] Chris Evert (1975/1985 – 260 w) Evonne Goolagong (1976 – 2 w) Martina Navratilova (1978/1987 – 331 w) Tracy Austin (1980 – 22 w) Steffi Graf (1987/1997 – 377 w) // Monica Seles (1991/1996 – 178 w) Arantxa Sánchez Vicario (1995 – 12 w) Martina Hingis (1997/2001 – 209 w) Lindsay Davenport (1998/2006 – 98 w) Jennifer Capriati (2001/2002 – 17 w) Venus Williams (2002 – 11 w) Serena Williams (2002/2017 – 319 w) Kim Clijsters (2003/2011 – 20 w) Justine Henin (2003/2008 – 117 w) Amélie Mauresmo (2004/2006 – 39 w) Maria Sharapova (2005/2012 – 21 w) Ana Ivanovic (2008 – 12 w) Jelena Janković (2008/2009 – 18 w) Dinara Safina (2009 – 26 w) Caroline Wozniacki (2010/2018 – 71 w) Victoria Azarenka (2012/2013 – 51 w) Angelique Kerber (2016/2017 – 34 w) Karolína Plíšková (2017 – 8 w) Garbiñe Muguruza (2017 – 4 w) Simona Halep (2017/2019 – 64 w) Naomi Osaka (2019 – 25 w) Ashleigh Barty (2019/2022 – 121 w) Iga Świątek (2022/2024 – 125 w) Aryna Sabalenka (2023/2024 – 9 w)