WTA veterans Iveta Benesova and Kristina Barrois met in the only main draw match of Day 1.
Kristina Barrois, 29, edged fellow veteran Iveta Benesova, 28, in the first round, 57 64 64.
Vera Dushevina's ground game was sound but she lost her serve 10 times in her first round.
Melanie Oudin was just a little bit more solid than Vera Dushevina, scoring a 75 57 62 win.
Kim Clijsters met the press after she came to Paris. In her only prior visit, she won the title.
Yanina Wickmayer, a wildcard entry into the draw, beat Elena Vesnina in two sets in her opener.
Yanina Wickmayer, Belgium's No.2 now that Justine Henin has retired, at her post-match press.
Andrea Petkovic beat fellow German Angelique Kerber to reach her third quarterfinal of 2011.
Bethanie Mattek-Sands beat Stephanie Cohen-Aloro to reach the quarterfinals of the Open GDF SUEZ.
Stacey Allaster spoke at a press conference discussing the future of women's tennis in France.
Petra Kvitova battled for over three hours to beat fellow Czech Barbora Zahlavova Strycova.
Barbora Zahlavova Strycova missed out on a match point and lost in a marathon to Petra Kvitova.
Klara Zakopalova, another Czech moving up the rankings, lost to Yanina Wickmayer on Thursday.
Nadia Petrova was out-aced in her second round loss to former Top 5 player Jelena Dokic, 10-9.
Jelena Dokic beat Nadia Petrova, her first Top 20 win since the Australian Open back in 2009.