The 2010 French Open finalist Sam Stosur is through to the second round of this year's event after a comfortable 6-0 6-2 victory over veteran Kimiko Date-Krumm.
It was a wet day in Paris and Stosur did not get on court until early afternoon, due to a two-hour rain delay.
When she finally got on court, Aussie Stosur was more than ready for action, and she swept through the first nine games against her 42-year-old Japanese opponent.
Stosur's power game often proves potent on clay and she used her powerful serve and pinpoint groundstrokes to dominate Date-Krumm.
She finally lost a game at 3-0 in set two and Date-Krumm bravely won a lengthy sixth game as well to make it 2-4 but Stosur then powered through the final two games to complete victory in just under an hour and five minutes.
Stosur, who won the US Open in 2011, lost to Francesca Schiavone in the 2010 final at Roland Garros, but has been somewhat hampered by a right calf injury this season so far.
The ninth seed will have been pleased to have made rapid progress because the weather ensured that the action in Paris had a stop-start nature, and the rain returned in the afternoon after just 90 minutes of play was possible.
"Stosur is so strong and she's a specialist on clay," said Date-Krumm. "Today she didn't make mistakes because I couldn't put her under pressure."
Meanwhile, the 29-year-old Australian was happy to get her match over quickly, saying: "When I was playing, it was actually not too bad. It was spitting a little bit when we went out there. You think, 'Oh, are we going to start, are we not?'
"Luckily for me, I was able to finish the match before this last downpour came. So I guess it's the best way to deal with sometimes a frustrating situation."
Stosur now faces either Lauren Davis of the United States or Kristina Mladenovic of France.
Britain's Heather Watson had been due to make her return to action after glandular fever against Stefanie Voegele on court three but the match has been rescheduled for Wednesday due to the wet weather.