The 2018 Moscow River Cup was a women's tennis tournament played on outdoor clay courts. It was the first edition of the event and part of the WTA International tournaments of the 2018 WTA Tour. It took place at the National Tennis Center in Moscow, Russia from 23 through 29 July 2018.
The 2018 BGL BNP Paribas Luxembourg Open was a women's tennis tournament played on indoor hard courts sponsored by BNP Paribas. It was the 23rd edition of the Luxembourg Open, and part of the WTA International tournaments category of the 2018 WTA Tour. It was held in Kockelscheuer, Luxembourg from 15 to 20 October 2018.
The 2019 Italian Open was a professional tennis tournament played on outdoor clay courts at the Foro Italico in Rome, Italy from 15–21 May 2019. It was the 76th edition of the Italian Open and was classified as an ATP Tour Masters 1000 event on the 2019 ATP Tour and a Premier 5 event on the 2019 WTA Tour.
The 2019 Internazionali Femminili di Palermo was a professional women's tennis tournament played on outdoor clay courts at the Country Time Club. It was the 27th edition of the tournament which was part of the 2019 WTA Tour. It took place in Palermo, Italy between 22 and 28 July 2019. The tournament made a return to the WTA Tour after a five-year absence (2014–2018).
The 2020 Mexican Open was a professional tennis tournament played on outdoor hard courts. It was the 27th edition of the men's Mexican Open, and part of the 2020 ATP Tour and the 2020 WTA Tour. It took place in Acapulco, Mexico between 24 and 29 February 2020, at the Princess Mundo Imperial.
The 2020 Monterrey Open was a women's tennis tournament played on outdoor hard courts. It was the 12th edition of the Monterrey Open and an International tournament on the 2020 WTA Tour. It took place at the Club Sonoma in Monterrey, Mexico, from 2 to 8 March 2020.
The 2020 Italian Open is a professional tennis tournament played on outdoor clay courts at the Foro Italico in Rome, Italy.
Cornelia Lister and Renata Voráčová were the defending champions, but they chose not to participate.
The 2020 Prague Open was a professional women's tennis tournament that was played on outdoor clay courts at the TK Sparta Praha in Prague, Czech Republic. It was a WTA International-class tournament on the 2020 WTA Tour.
The 2020 Advantage Cars Prague Open is a professional tennis tournament played on outdoor clay courts. It was part of the 2020 ATP Challenger Tour and the 2020 WTA 125K series.
The 2020 Upper Austria Ladies Linz was a women's tennis tournament played on indoor hard courts. It was the 30th edition of the Linz Open, and part of the WTA International tournaments category of the 2020 WTA Tour. Originally scheduled from 19 to 25 October 2020 at the TipsArena Linz in Linz, Austria, it was rescheduled for 9 to 15 November 2020 due to the COVID-19 pandemic.
The 2021 Abierto Zapopan was a professional tennis tournament played on outdoor hard courts. It was the 2nd edition of the tournament and part of the 2021 WTA Tour.
The 2021 Miami Open was a professional hardcourt tennis tournament played from March 23 to April 4, 2021 on the grounds of Hard Rock Stadium in Miami Gardens, Florida. The 36th edition of the Miami Open, it was a Masters 1000 event on the 2021 ATP Tour, and a WTA 1000 event on the 2021 WTA Tour. The 2020 edition was postponed due to the onset of the COVID-19 pandemic in Florida.
The 2021 İstanbul Cup is a tennis tournament played on outdoor clay courts. It is the 14th edition of the İstanbul Cup, and part of the WTA International tournaments of the 2021 WTA Tour. It will take place in Istanbul, Turkey, from 19 through 25 April 2021.
The 2021 Belgrade Challenger is a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Belgrade, Serbia between 12 and 18 April 2021.
The 2021 Bol Open was a professional tennis tournament played on outdoor clay courts. It was the fifteenth edition of the tournament and part of the 2021 WTA 125K series. The tournament could not be held in 2020 due to Covid-19 pandemic. It took place in Bol, Croatia, from 7 to 12 June 2021.
The 2021 Ladies Open Lausanne was a women's tennis tournament played on outdoor clay courts. It was the 28th edition of the Ladies Open Lausanne, and part of the 250 category of the 2021 WTA Tour. It took place at Tennis Club Stade-Lausanne in Lausanne, Switzerland, from 12 through 18 July 2021.
The 2021 Internazionali Femminili di Palermo was a professional women's tennis tournament played on outdoor clay courts at the Country Time Club. It is the 29th edition of the tournament which is part of the 2021 WTA Tour. It take place in Palermo, Italy between 19 and 25 July 2021. First-seeded Danielle Collins won the singles title.
The 2021 WTA Romanian Open, known as the Winners Open due to sponsorship reasons, was a professional women's tennis tournament played on outdoor clay courts at the Winners Sports Club. It was the 1st edition of the tournament held in the city of Cluj-Napoca and was a part of the 2021 WTA Tour.
The 2021 Karlsruhe Open was a professional tennis tournament played on outdoor clay courts. It was the 2nd edition of the tournament and part of the 2021 WTA 125K series, offering a total of $115,000 in prize money. It took place in Karlsruhe, Germany between 7 and 12 September 2021. The tournament did not take place in 2020 due to the COVID-19 pandemic.
Fiona Ferro 
Arantxa Rus / 
Tamara Zidanšek 
