Sarah King continued her unflappable form in the second round of the Dunes Medal on Tuesday. After shooting an opening round 70, King backed up her performance with an even better 69 to lead her nearest rival Stephanie Na by four strokes. Canadian Amateur champion Stacey Keating is a further two strokes back from Na after rounds of 73 and 72. Bryden Macpherson made good use of his advantage from his Round 1 64 and fired a round of 72 to sit four strokes clear of the pack. Luke Bleumink&aposs consistency moved him into second position with consecutive rounds of 70. Scott Arnold is a further two strokes back after rounds of 72 and 70. Men&aposs Leaderboard Macpherson, Bryden 64 72 136 Bleumink, Luke 70 70 140 Bond, Tom 70 70 140 Arnold, Scott 72 70 142 Bae, Aidan 68 75 143 Sinnott, Todd 72 71 143 Smyth, Michael 70 73 143 Beckman, Daniel 71 73 144 Cullen, Nick 70 74 144 Edwards, Ric 68 76 144 Gleeson, Matthew 72 72 144 Ninyette, Brody 74 70 144 Nisbet, Daniel 71 73 144 Stephens, Adam 72 72 144 Thorn, Chris 74 70 144 Varela, Mark 73 71 144 Consoli, Jared 71 74 145 Rankin, Brett 72 73 145 Women&aposs Leaderboard King, Sarah 70 69 139 Na, Stephanie 73 70 143 Keating, Stacey 73 72 145 Park, Lee 75 73 148 Watkinson, Allyce 73 75 148 Arthur, Bree 73 76 149 Bozanic, Jovanna 75 75 150 Whittle, Samantha 78 73 151 Elliott, Breanna 77 75 152 Heard, Ebony 75 77 152 Holt, Samantha 76 76 152 Massey, Courtney 72 80 152 Dewhurst, Ashlee 75 78 153 Shanahan, Stacey 73 80 153 Speechley, Jessica 75 78 153