Coughlan suffers bogey blues
Should the 19-year-old succeed in gaining the top honour today, she will become the first competitor since Joanne Morley (now a professional) did the double in 1992.
Walker stands one under par after rounds of 71, 73 and 74 and she leads Frenchwoman Sophie Giquel by one with another French player Virginie Beauchet two off the pace on 220.