Stefanie Maria Graf is a German former professional tennis player. Widely regarded as one of the greatest tennis players of all time, she was ranked world No. 1 for a record 377 weeks and won 22 major singles titles, the second-most since the start of the Open Era in 1968 and the third-most of all-time. In 1988, Graf became the first tennis player to achieve the Golden Slam by winning all four major singles titles and the Olympic gold medal in the same calendar year. Furthermore, she is the only tennis player, male or female, to have won each major tournament at least four times.
Monica Seles is a retired professional tennis player who represented Yugoslavia and the United States. A former world No. 1, she won nine Grand Slam singles titles, eight of them as a teenager while representing Yugoslavia, and the final one while representing the United States.
Jennifer Maria Capriati is an American former world No. 1 tennis player. A member of the International Tennis Hall of Fame, she won three singles Grand Slam titles and was the gold medalist at the 1992 Summer Olympics.
Gabriela Beatriz Sabatini is an Argentine-Italian former professional tennis player. A former world No. 3 in both singles and doubles, Sabatini was one of the leading players from the mid-1980s to the mid-1990s, amassing 41 titles. In singles, Sabatini won the 1990 US Open, the Tour Finals in 1988 and 1994, and was runner-up at Wimbledon 1991, the 1988 US Open, and the silver medalist at the 1988 Olympics. In doubles, Sabatini won Wimbledon in 1988 partnering Steffi Graf, and reached three French Open finals. Among Open era players who did not reach the world No. 1 ranking, Sabatini has the most wins over reigning world No. 1 ranked players. In 2006, she was inducted into the International Tennis Hall of Fame and in 2018 Tennis Magazine ranked her as the 20th-greatest female player of the preceding 50 years.
Mary Joe Fernández Godsick is an American former professional tennis player, who reached a career-high ranking of world No. 4 in both singles and doubles. In singles, Fernández was the runner-up at the 1990 and 1992 Australian Open, and the 1993 French Open. She also won a bronze medal at the 1992 Summer Olympics. In doubles, she won the 1991 Australian Open with Patty Fendick and the 1996 French Open with Lindsay Davenport, plus two Olympic gold medals.
Anke Huber is a German retired top-five professional tennis player. She was the runner-up in women's singles at the 1996 Australian Open and the 1995 WTA Finals. Huber won twelve singles and one doubles title on the WTA Tour. She finished inside the top twenty for ten seasons, and achieved a career-high ranking of four in October 1996.
The Hamburg European Open is an annual tennis tournament for professional players held in Hamburg, Germany and part of the Association of Tennis Professionals (ATP) Tour. Before 2021, it was a male-only event.
Amanda Coetzer is a South African former professional tennis player. Coetzer finished in the WTA rankings top 20 for ten consecutive seasons (1992–2001), peaking at world No. 3. She reached three Grand Slam semifinals and one Grand Slam doubles final. Coetzer earned a reputation for regularly beating players who were ranked higher than her. By virtue of scoring so many upset wins in spite of her five-foot-two (1.58m) stature, she gained the nickname: "The Little Assassin".
Two-time defending champion Martina Hingis defeated Amélie Mauresmo in the final, 6–2, 6–3 to win the women's singles tennis title at the 1999 Australian Open. With the win, she joined Margaret Court, Evonne Goolagong, Steffi Graf, and Monica Seles as the only women to win three consecutive Australian Open titles. Hingis also became the only woman to win three consecutive Australian Open titles in singles and doubles simultaneously.
Iva Majoli defeated Martina Hingis in the final, 6–4, 6–2 to win the women's singles tennis title at the 1997 French Open. Majoli became the first Croat to win a major title. This was the only major match Hingis lost in the 1997 season, preventing her from achieving the Grand Slam. Hingis was on a 35-match winning streak, dating to the start of the season in Sydney.
Martina Navratilova defeated Zina Garrison in the final, 6–4, 6–1 to win the ladies' singles tennis title at the 1990 Wimbledon Championships. It was her ninth Wimbledon singles title and 18th and final major singles title overall, tying Chris Evert's Open Era record.
The Graf–Seles rivalry was a tennis rivalry between Steffi Graf and Monica Seles, who competed in 15 matches between 1989 and 1999. Seles, a left-handed player, demonstrated powerful and precise hitting from the baseline on both wings and an exceptional return of serve. Graf, in contrast, had a formidable forehand, in addition to her penetrating serve, first rate foot speed, and mostly sliced her backhand.
Monica Seles defeated Gabriela Sabatini in the final, 6–4, 5–7, 3–6, 6–4, 6–2 to win the singles tennis title at the 1990 Virginia Slims Championships. The final lasted 3 hours and 47 minutes, the longest final by time in the tournament's history.
The 1988 Virginia Slims of Florida was a women's tennis tournament played on outdoor hard courts at the Boca Raton Resort & Club in Boca Raton, Florida in the United States and was part of Tier II of the 1988 WTA Tour. The tournament ran from March 7 through March 13, 1988. Fourth-seeded Gabriela Sabatini won the singles title and earned $60,000 first-prize money, ending a 30-match winning streak by Steffi Graf. It was Sabatini's first win over Graf after 11 previous defeats.
The 1989 Citizen Cup was a tennis tournament played on outdoor clay courts at the Am Rothenbaum in Hamburg in West Germany that was part of the Category 3 tier of the 1989 WTA Tour. It was the 12th edition of the edition of the tournament and was held from 1 May until 7 May 1989. First-seeded Steffi Graf won the singles title, her third consecutive at the event. Both the singles and doubles finals were cancelled after Jana Novotná was forced to default as a result of an injury to her right ankle which she sustained during her singles semifinal match against Arantxa Sánchez Vicario.
The 1998 Advanta Championships of Philadelphia was a tennis tournament played on indoor carpet courts at the Philadelphia Civic Center in Philadelphia, Pennsylvania in the United States that was part of Tier II of the 1998 WTA Tour. The tournament was held from November 9 through November 15, 1998. Steffi Graf won the singles title and earned $79,000 first-prize money.
The Citizen Cup was a women's tennis tournament played on outdoor clay courts. It was the seventh edition of the Citizen Cup and was a Tier II tournament on the 1993 WTA Tour. The tournament took place from 26 April to 2 May 1993 at the Am Rothenbaum venue, in Hamburg, Germany.
The 1989 Midland Group Championships was a women's tennis tournament played on indoor carpet courts at the Brighton Centre in Brighton, England that was part of the 1989 WTA Tour. It was the 12th edition of the tournament and was held from 23 October until 29 October 1989. First-seeded Steffi Graf won the singles title, her third at the event after 1986 and 1988. She earned $50,000 first-prize money as well as 300 Virginia Slims ranking points.
The 1990 Citizen Cup was a women's tennis tournament played on outdoor clay courts at the Am Rothenbaum in Hamburg in West Germany that was part of the Tier II category of the 1990 WTA Tour. It was the 13th edition of the tournament and was held from 30 April until 6 May 1990. First-seeded Steffi Graf won the singles title, her fourth consecutive at the event.
The 1991 Citizen Cup was a women's tennis tournament played on outdoor clay courts at the Am Rothenbaum in Hamburg in West Germany that was part of the Tier II category of the 1991 WTA Tour. It was the 14th edition of the tournament and was held from 29 April until 5 May 1991. Second-seeded Steffi Graf won the singles title, her fifth consecutive at the event.
Monica Seles 
Nicole Provis / 
Elna Reinach 
