The win marked Pierce's second title for the tournament (after her glorious triumph yesterday in the singles), but only her first Grand Slam doubles title. Hingis's Grand Slam women's doubles crown tally now stands at eight.
Not surprisingly, since teaming up for the first time earlier this year, the Swiss/French pairing have made a whirlwind impression on the doubles scene, especially at Grand Slams. They reached two consecutive finals in January, including the Australian Open, before posting their first title victory at the Pan Pacific event in Japan in February.
Hingis knows doubles like the back of her right hand (she's won 28 doubles titles, including Roland Garros in 1998 with Jana Novotna), while the Frenchwoman has 12 doubles titles in her own trophy cabinet. Together, as two of women's tennis' highest profile singles players, the duo make for some aesthetically pleasing tennis.
"Mary is a killer," laughed Hingis when asked to compare the Frenchwoman with her previous doubles partners - Novotna and Anna Kournikova. "She's got so much power. It helps her singles. I saw the match yesterday in singles and she's playing much better volleys, more aggressive. That's why I kept playing doubles, because mentally you get stronger.
"I think we're a great team because she's got all the power and I've got more the finesse or placement. She learned a lot from me," chuckled Hingis. "She's getting dangerous.
"I lost in the singles, but I tried to stay in the tournament focus, help with what I could, make it the easiest for her (Mary) to stay focused for the singles final. Today she played better doubles than me. It's all teamwork. I played better some days; her today," said Hingis, who teamed with Kournikova to reach the doubles final here last year.
Pierce, currently playing arguably the best singles tennis of her 11-year professional career, speaks with a newfound confidence these days: "When I can play well, I can beat anybody. I did it already. The dream is to become No1 of course, but being No1 is very difficult. You have to play well all the time. This is what I didn't have before," said the Frenchwoman.
"I'm happy. Maybe I'm so tired that I don't feel much. I love playing with Martina and I have a lot of fun with her on the court. It's our first title and I hope it's not the last," continued Pierce, herself a doubles semi finalist here in 1999.
Added the current world No1 singles player: "I know how it feels (to win singles and doubles at a Grand Slam). I had it three times in Australia. It's just great leaving a tournament with two titles under the belt."