Canada 's Elizabeth Gleadle threw a national record of 64.83 m to edge USA 's Brittany Borman by eight centimetres .
Latvia 's Madara Palameika was third at 64.07 .
Canada 's Elizabeth Gleadle threw a national record of 64.83 m to edge USA 's Brittany Borman by eight centimetres , and Latvia 's Madara Palameika was third at 64.07 .