FREMANTLE, Australia -- Anna Tunnicliffe's U.S. crew won all four races Friday to beat Britain to the women's match-racing gold medal at the world sailing championships.
Tunnicliffe, with Deborah Capozzi and Molly Vandemoer, contended with variable wind conditions to dominate British skipper Lucy Macgregor, Annie Lush and Kate Macgregor.
The French crew of Claire Leroy beat Russia, skippered by Ekaterina Skudina, 3-1 to claim the bronze medal.
Three-time Laser world champion Tom Slingsby of Australia stayed on course to defend his title with one win in three races, maintaining his 11-point lead over Paul Goodison of Britain.
John Pink and Rick Peacock of Britain lead the men's 49ers after 12 races and will look to extend their lead over Australia's Nathan Outteridge and Iain Jensen, and Danish brothers Emil and Simon Toft Nielsen ahead of Sunday's medal races.
Two-time Olympic gold medalist Robert Scheidt and crewmate Bruno Prada of Brazil extended their lead in the men's keelboat to 18 points from Americans Mark Mendelblatt and Brian Fatih after 10 races. Germany's Robert Stanjek and Frithjof Kleen are in third place.
In the women's 470, Spain's Tara Pacheco and Berta Betanzos maintained their hold on the No. 1 position, while Japan's Ai Kondo and Wakako Tabata retained second place.
Dorian Van Rijsselberghe kept the men's windsurfer lead after eight races, with Piotr Myszka in second and early leader Nimrod Mashich of Israel in third.