Martina Hingis is a Swiss former professional tennis player. Hingis is the first Swiss player, male or female, to win a major title and attain a world No. 1 ranking. She spent a total of 209 weeks as the singles world No. 1 and 90 weeks as doubles world No. 1, holding both No. 1 rankings simultaneously for 29 weeks. She won five major singles titles, 13 major women's doubles titles, and seven major mixed doubles titles, for a combined total of 25 major titles. In addition, she won the season-ending WTA Finals two times in singles and three in doubles, an Olympic silver medal in doubles, and a record 17 Tier I singles titles.
The Stuttgart Open, also known by its sponsored name Porsche Tennis Grand Prix, is a women's tennis tournament held in Stuttgart, Germany. Held since 1978, the tournament is the oldest women's indoor tournament in Europe. The event was part of the Tier II category from 1990 until 2008 and as of 2009 has been a Premier tournament on the WTA Tour. The singles champion receives prize money and a Porsche sports car. Until 2008 the tournament was played on hardcourt in autumn. Since 2009 it is played on clay court in spring, as a warm-up tournament to the French Open, making it the first indoor clay court event on the women's tour.
The 1996 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt in Germany that was part of Tier II of the 1996 WTA Tour. It was the 19th edition of the tournament and was held from 7 October until 13 October 1996. Eighth-seeded Martina Hingis won the singles title.
The 1997 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt in Germany that was part of Tier II of the 1997 WTA Tour. It was the 20th edition of the tournament and was held from 6 October through 12 October 1997. First-seeded Martina Hingis won the singles title, her second consecutive at the event.
The 1998 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt in Germany that was part of Tier II of the 1998 WTA Tour. It was the 21st edition of the tournament and was held from 5 October until 11 October 1998. Unseeded Sandrine Testud won the singles title and earned $79,000 first-prize money.
The 1988 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Centre in Filderstadt in West Germany and was part of the Category 4 tier of the 1988 WTA Tour. It was the 11th edition of the tournament and was held from 10 October to 16 October 1988. First-seeded Martina Navratilova won the singles title, her third consecutive and fifth in total.
The 1983 Porsche Classic was a women's tennis tournament played on indoor hard courts in Filderstadt, West Germany that was part of the 1983 Virginia Slims World Championship Series. The tournament was held from 24 October until 30 October 1983. First-seeded Martina Navratilova won the singles title, her second consecutive, and earned $28,000 first-prize money.
The 1999 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts in Filderstadt, Germany. that was part of Tier II of the 1999 WTA Tour. It was the 22nd edition of the tournament and was held from 4 October until 10 October 1999. First-seeded Martina Hingis won the singles title, her third at the event after 1996 and 1997, and earned $80,000 first prize money.
The 1979 Porsche Tennis Grand Prix was a women's singles tennis tournament played on indoor carpet courts at the Tennis Sporthalle Filderstadt in Filderstadt in West Germany. The event was part of the AAA category of the 1979 Colgate Series. It was the second edition of the tournament and was held from 5 November through 11 November 1979. Third-seeded Tracy Austin won the singles event, successfully defending her 1978 title, after defeating world No. 1 Martina Navratilova in the final. Austin was entitled to $20,000 first-prize money but elected to receive a Porsche 924 instead.
The 1987 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor carpet courts at the Filderstadt Tennis Centre in Filderstadt in West Germany and was part of Category 3 tier of the 1987 WTA Tour. It was the 10th edition of the tournament and was held from 12 October to 18 October 1987. First-seeded Martina Navratilova won the singles title, her second consecutive and fourth in total.
The 1981 Porsche Tennis Grand Prix was a women's singles tennis tournament played on indoor carpet courts at the Tennis Sporthalle Filderstadt in Filderstadt in West Germany. The event was part of the Category 4 tier of the 1981 Toyota Series. It was the fourth edition of the tournament and was held from 26 October through 1 November 1981. First-seeded Tracy Austin won the singles event, her fourth successive singles title at the event, and the accompanying $22,000 first-prize money.
The 1982 Porsche Tennis Grand Prix was a women's singles tennis tournament played on indoor carpet courts at the Tennis Sporthalle Filderstadt in Filderstadt in West Germany. The event was part of the Category 4 tier of the 1982 Toyota Series. It was the fifth edition of the tournament and was held from 18 October through 24 October 1982. First-seeded Martina Navratilova won the singles event and the accompanying $22,000 first-prize money.
The 1986 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts in Filderstadt, West Germany that was part of the 1986 WTA Tour. It was the ninth edition of the tournament and was held from 13 October through 19 October 1986. First-seeded Martina Navratilova won the singles title.
The 1991 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Centre in Filderstadt, Germany and was part of the Tier II of the 1991 WTA Tour. It was the 14th edition of the tournament and was held from 14 October to 20 October 1991. Unseeded Anke Huber won the singles title and earned $70,000 first-prize money.
The 1992 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Centre in Filderstadt, Germany and was part of the Tier II of the 1992 WTA Tour. It was the 15th edition of the tournament and was held from 12 October to 18 October 1992. On her 36th birthday third-seeded Martina Navratilova won the singles title, her sixth at the event, and earned $70,000 first-prize money.
The 1993 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Centre in Filderstadt, Germany and was part of the Tier II of the 1993 WTA Tour. It was the 16th edition of the tournament and was held from 11 October to 17 October 1993. Third-seeded Mary Pierce won the singles title and earned $75,000 first-prize money as well as 300 ranking points.
The 2002 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt, Germany that was part of Tier II of the 2002 WTA Tour. It was the 25th edition of the tournament and was held from 7 October until 13 October 2002. Sixth-seeded Kim Clijsters won the singles title and earned $97,000 first-prize money.
The 2003 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt, Germany that was part of Tier II of the 2003 WTA Tour. It was the 26th edition of the tournament and was held from 6 October until 13 October 2003. Third-seeded Kim Clijsters won the singles title and earned $98,500 first-prize money.
The 2004 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt, Germany that was part of Tier II of the 2004 WTA Tour. It was the 27th edition of the tournament and was held from 4 October until 10 October 2004. Second-seeded Lindsay Davenport won the singles title and earned $98,500 first-prize money.
The 2005 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor hard courts at the Filderstadt Tennis Club in Filderstadt, Germany that was part of Tier II of the 2005 WTA Tour. It was the 28th edition of the tournament and was held from 3 October until 9 October 2005. First-seeded Lindsay Davenport won the singles title and earned $98,500 first-prize money.
Martina Hingis 
Anna Kournikova 
