Today at Arthur Ashe Stadium, when David Ferrer continues his quest for upset over Novak Djokovic or when Serena Williams mounts a home-country championship run, IBM data will be there to help fans analyze the game in ways John McEnroe can only intuit from years of experience.
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The emergence of a new generation of tennis stars, led by Venus and Serena Williams, coincided with a series of foot and ankle injuries that saw Hingis slip down the rankings and eventually announce her retirement in 2002.
Elsewhere, Serena Williams set up a semifinal showdown with world number one Victoria Azarenka.
Serena Williams has been a role model for aspiring young women tennis players for over a decade.
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Stephens, who reached the Australian Open semifinals in January with a win over Serena Williams, beat Kiki Bertens of the Netherlands 4-6, 6-3, 6-2.
Top-ranked Serena Williams looms as a potential opponent in Saturday's final.
In the evening's other match Agnieszka Radwanska, the No. 4 seed from Poland, booked a semifinal with Serena Williams after recording an epic 6-7 7-5 6-4 victory over Italian Sara Errani.
Second seed Safina, beaten in last year's final by Serena Williams, suffered a worrying recurrence of an old back injury as she retired trailing 4-5 in the first set to compatriot Maria Kirilenko.
Star attraction Henin, who put up a tremendous fight before losing to eventual champion Serena Williams in Melbourne, is returning to the WTA circuit after a 19-month layoff, and looked rusty in her loss to Dulko.
World number one Serena Williams pulled out with a knee injury ahead of Saturday's semi-final against Dementieva, before Mauresmo beat second seed Jelena Jankovic in the second semi.
Meanwhile, the elder sister of Serena Williams, seven-time grand slam winner Venus Williams , played a key role in a 2-1 win for the United States over South Africa in Perth.
In the women's draw, Serena Williams remains on course for a sixth singles title in Melbourne.
Similar items from Venus and Serena Williams and Jennifer Capriati, a pair of Monica Seles' sneakers and a 1999 Wimbledon order of play sheet signed by finalists Steffi Graf and Davenport were also being auctioned.
Meanwhile, defending champion Serena Williams cruised into the quarterfinals with a crushing 6-2 6-0 win over Slovakian Daniela Hantuchova.
Azarenka had retired during previous Grand Slam matches, including a fourth-round match against Serena Williams at the 2009 Australian Open.
The French Open champion, who was defeated in the Olympic final by Serena Williams, missed Montreal due to a stomach virus.
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U.S. star Sloane Stephens set up a last eight clash with compatriot Serena Williams following her 6-3 6-4 win over Sweden's Sofia Arvidsson.
The 22-year-old lost in qualifying but earned a bye into the second round when Serena Williams withdrew injured.
She beat Georgia's Anna Tatishvili 7-5 6-3, to advance to a meeting with fifth-seeded American Serena Williams Thursday.
However, Henin sustained an injury to her left leg and later confirmed on her Web site that she will miss next week's Sydney Invitational, where she faced a possible second-round clash with Serena Williams, in order to recover in time for the decade's first Grand Slam event, the Australian Open.
Serena Williams is already into the second round with a straight sets win over Varvara Lepchenko.
Defending champion Serena Williams and sister Venus remain on course for a semifinal meeting after both won to reach the quarterfinals.
If she can beat Martinez Sanchez, she will face a final against either world No. 1 Serena Williams or the formerly top-ranked Jelena Jankovic.
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At this year's Italian Masters, she defeated world number one Serena Williams in the semi-finals and was twice a set and a break up against Kim Clijsters in the final before losing in three sets.
But Sharapova insists the women's game is on an upward curve, with players like Victoria Azarenka, Petra Kvitova and Serena Williams battling it out for major honors, and a new generation of talented youngsters snapping at their heels.
Earlier, women's World No. 1 Serena Williams ended the hopes of Romanian qualifier Simona Halep with a routine 6-3 6-0 win in their semifinal.
In second round action Tuesday, Serena Williams needed exactly one hour to reach the quarterfinals with a crushing 6-2 6-2 win over France's Alize Cornet in the night session.
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The match also marked the first time since two years earlier, when Serena Williams beat Dinara Safina on the same court, that a Grand Slam title placed a new player atop the rankings.
Serena Williams continued her march toward the women's final with a 6-1, 6-3 victory over Roberta Vinci.
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