Britain's Harriet Dart, Liam Broady and Katie Boulter came through three-setters to reach the second round of French Open qualifying on Tuesday.
Boulter cut her errors to beat Nuria Brancaccio 6-2 4-6 6-4 and Jan Choinski advanced when Nicolas Kicker retired.
But Katie Swan, Heather Watson and Lily Miyazaki were all knocked out.
Players need to come through three rounds of qualifying to reach the main draw of the clay-court Grand Slam at Roland Garros, which starts on Sunday.
Fellow Britons Fran Jones and Ryan Peniston booked their places in the second round on Monday.