The 1986 Virginia Slims World Championship Series was the 14th season since the foundation of the Women's Tennis Association. It commenced on March 24, 1986, and concluded in December, 1986 after 41 events. The season was abbreviated in order to return the tour to a calendar year basis.
The 1971 ILTF Women's Tennis Circuit was the 58th season since the formation of the International Lawn Tennis Federation in 1913, it consisted of a number of tennis tournaments for female tennis players.
The 1972 ILTF Women's Tennis Circuit was the 58th season since the founding of the International Lawn Tennis Association and was the final season to be solely administered by the ILTF.
The 1973 WTA Tour was also the first season of the WTA Tour was officially formed by Billie Jean King following a meeting held in the Gloucester Hotel in London during the week before Wimbledon. It was composed of the third annual Virginia Slims Circuit a tour of tennis tournaments for female tennis players, sponsored by Virginia Slims cigarettes. and the ILTF Commercial Union Assurance Grand Prix, a circuit of tournaments sponsored by Commercial Union Assurance Company.
The 1974 WTA Tour was composed of the fourth annual Virginia Slims Circuit and Women's International Grand Prix, a tour of tennis tournaments for female tennis players, sponsored by Virginia Slims cigarettes. The WTA signed their first television broadcast contract in 1974, with the broadcasting network CBS with Brent Musburger announcing.
The 2014 WTA Tour was the elite professional tennis circuit organized by the Women's Tennis Association (WTA) for the 2014 tennis season. The 2014 WTA Tour calendar comprises the Grand Slam tournaments, the WTA Premier tournaments, the WTA International tournaments, the Fed Cup, and the year-end championships. Also included in the 2014 calendar is the Hopman Cup, which was organized by the ITF and did not distribute ranking points.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2014 WTA 125K series calendar consists of five tournaments, each with a total prize fund of $125,000. After 2013, both the Cali, and Nanjing events folded, with Nanjing being replaced by a tournament in Nanchang, and a new event starting in Limoges, France.
The 2015 WTA Tour was the elite professional tennis circuit organised by the Women's Tennis Association (WTA) for the 2015 tennis season. The 2015 WTA Tour calendar comprises the Grand Slam tournaments (supervised by the International Tennis Federation, the WTA Premier tournaments, the WTA International tournaments, the Fed Cup, and the year-end championships. Also included in the 2015 calendar is the Hopman Cup, which is organized by the ITF and does not distribute ranking points.
The WTA 125K series was the secondary professional tennis circuit organised by the Women's Tennis Association. The 2015 WTA 125K series calendar consists of six tournaments, each with a total prize fund of $125,000. After 2014, both the Suzhou, and Ningbo events folded, with Suzhou being replaced by a tournament in Dalian, and new events starting in Carlsbad and Hua Hin.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2016 WTA 125K series calendar consists of eight tournaments, each with a total prize fund of $125,000. After 2015, the Nanchang event was upgraded to a WTA International level tournament, and with new events starting in San Antonio, West Hempstead and Bol. The planned tournament in West Hempstead was then cancelled, and the tournament scheduled to take place in Carlsbad, California was moved to Oahu, Hawaii. Following the death of the Thai king Bhumibol Abdulyadej, the event due to take place in Hua Hin was also cancelled, in accordance with Thai tradition that sporting events cannot take place in the month after a monarch's death.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2017 WTA 125K series calendar consisted of eight tournaments, each with a total prize fund of $125,000. After 2016, San Antonio Open folded while two new tournaments were introduced in Zhengzhou and Mumbai. The Hua Hin Championships returned after the previous year's edition was cancelled due to the death of Thai monarch, Bhumibol Adulyadej.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2018 WTA 125K series calendar consisted of ten tournaments, each with a total prize fund of $125,000 each except the Oracle Challenger Series that offer $150,000 in prize money. After 2017, Dalian Women's Tennis Open and Hawaii Tennis Open were scrapped while Hua Hin Championships was replaced by Thailand Open, an international WTA event to take place at the same venue, beginning February 2019. 5 new tournaments were introduced in Newport Beach, Indian Wells, Chicago, Houston and Anning which was earlier an ITF event.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2019 WTA 125K series calendar consists of eleven tournaments, each with a total prize fund of $125,000 except the Oracle Challenger Series that offers $162,480 in prize money. Starting from 2019, Zhengzhou Open was upgraded to a WTA Premier level event while the Mumbai Open was cancelled due to elections in the city. The Oracle Challenger event in Chicago was replaced by another one in New Haven. Three new Challenger events were introduced in Guadalajara, Båstad and Karlsruhe.
The WTA 125K series is the secondary professional tennis circuit organised by the Women's Tennis Association. The 2020 WTA 125K series calendar consists of only three tournaments, shortened from the original schedule of fourteen tournaments due to the COVID-19 pandemic.
The 2021 International Tennis Federation (ITF) Women's World Tennis Tour is the entry-level and mid-level tour for women's professional tennis. It is organized by the International Tennis Federation and is a tier below the Women's Tennis Association (WTA) Tour. The ITF Women's World Tennis Tour provides a professional pathway between the ITF Junior World Tennis Tour and the WTA Tour. The results of ITF tournaments are incorporated into the WTA ranking, which enables professionals to progress through to the elite levels of women's professional tennis. The ITF Women's World Tennis Tour offers approximately 500 tournaments across 65 countries and incorporates five prize money levels of tournaments: $15,000, $25,000, $60,000, $80,000 and $100,000
The ATP Challenger Tour in 2022 was the secondary professional tennis circuit organized by the ATP. The 2022 ATP Challenger Tour calendar comprised 184 tournaments with prize money ranging from $37,520 up to $159,360. It was the 45th edition of Challenger tournaments cycle and 14th under the name of Challenger Tour.
The WTA 125 tournaments are the secondary professional tennis circuit organised by the Women's Tennis Association. The 2022 calendar consists of twenty-four tournaments.
The 2022 International Tennis Federation (ITF) Women's World Tennis Tour is the entry-level and mid-level tour for women's professional tennis. It is organized by the International Tennis Federation and is a tier below the Women's Tennis Association (WTA) Tour. The ITF Women's World Tennis Tour provides a professional pathway between the ITF Junior World Tennis Tour and the WTA Tour. The results of ITF tournaments are incorporated into the WTA ranking, which enables professionals to progress through to the elite levels of women's professional tennis. The ITF Women's World Tennis Tour offers approximately 500 tournaments across 65 countries and incorporates five prize money levels of tournaments: $15,000, $25,000, $60,000, $80,000 and $100,000
The WTA 125 tournaments are the secondary professional tennis circuit tournaments organised by the Women's Tennis Association. The 2023 calendar consists of thirty-one tournaments.
The WTA 125 tournaments are the secondary professional tennis circuit tournaments organised by the Women's Tennis Association. The 2024 calendar tentatively consists of thirty-six tournaments.
Nuria Párrizas Díaz (2)
Jasmine Paolini 
Diane Parry 
Arantxa Rus (2)
