Australian Ashleigh Barty has survived a bumpy ride to book her spot in the French Open second round.

The eighth seed beat American Jessica Pegula 6-3 6-3 to make it three from three for Australians, after Alex de Minaur and Alexei Popyrin’s earlier victories on the Paris clay.

It was far from conventional from the top-ranked Australian, who let break point opportunities slip in both sets, before recovering in time to claim the scrappy win in exactly an hour.