Lydia Ko was joined by Celine Boutier at the top of the leaderboard after day three of the Trust Golf Women's Scottish Open.
France's Boutier shot a five-under-par 67 to make up four shots on the New Zealander, who could only manage a one-under 71. They both sit on 15-under-par.
The round of the day came from Canada's Maude-Aimee Leblanc, a 66 tying her in second place alongside Germany's Leonie Harm on 14-under.
Northern Ireland's Stephanie Meadow shot her best round of the tournament so far - a two-under 70 that lifted to her three-under overall and inside the top 50.
