Scottish Ladies Amateur Championship round two saw Connie Jaffrey add to her first round 73 to lead the qualifiers on one-over-par.
The Troon Ladies member maintained her four shot overnight lead with a composed display. Her nearest challenger, Ailsa Summers, moved into second place after a Championship best 72 of two-under-par.
In joint third place on six-over is a strong trio made up of defending champion Alyson McKechin, and the Briggs’ sisters from Kilmacolm Megan and Eildih.
Megan, the 2009 champion at Southerness, posted a 75, while Eildih, who will represent GB and Ireland at next month’s Curtis Cup, shot 76.
Elderslie’s McKechin, who won the title at Longniddry 12 months ago, had three birdies on a near perfect golfing day on the south Ayrshire coast.
"I was delighted to maintain my four shot lead." - Connie Jaffrey, Scottish Ladies Amateur Championship leader.
Jaffrey, the Scottish Girls champion, made four birdies, the pick of the bunch coming at the short second, where she came close to a hole-in-one.
“I hit the ball to a foot and then did it again for another of my birdies at the 17th,” said the 17-year-old, playing in her first championship.
“I was delighted to maintain my four shot lead and it’s a good feeling to head the strokeplay qualifiers.”
Second placed Ailsa Summers’ hole of the day came at the long eighth, where she made eagle. She also had a handful of birdies in the two-under round, capping a great start to the Scottish Ladies Amateur Championship.
Eilidh Briggs was runner-up at Machrihanish three years ago and she made three birdies to finish among the top seeds.
“The conditions were definitely easier,” said Briggs. “The wind wasn’t nearly so fierce.”
Scottish Ladies Amateur Championship leaders
The next stage of the Scottish Ladies Amateur Championship
Qualifying, are 31 players on plus 21 and better, they will go straight into the Matchplay stages. Jane Finnie, of Troon Ladies claimed the 32nd spot by defeating Carol Whyte from Milngavie at the second hole of their play-off.
Having halved the first extra hole in bogey fives, Whyte hit her second shot out of bounds at the 18th and eventually conceded the hole. Finnie’s reward is a first round match against club mate Jaffrey.
Click here to see the full leaderboard for the Scottish Ladies Amateur Championship.