Tammy Cunnington of Ponoka, Alta., lowered the world record in the S4 disability category women's 50-m butterfly on Saturday at the 2015 U.S. Paralympics Swimming Open competition.

Cunnington, a member of Canada's world championship and Parapan Am Games teams this past summer, clocked 56.14 seconds which eclipsed the previous world standard of 56.36 set by Sandra Erikson of Sweden at the 2004 Paralympic Games in Athens.

Canadian swimmers combined for 13 individual victories and one relay triumph on the day.

Nicolas-Guy Turbide of Quebec City notched his sixth and seventh gold medals of the competition in the S13 category for visually impaired with victories in the 100-m freestyle and 50-m butterfly.

Sarah Mehain of Vernon, B.C., Morgan Bird of Calgary and Samantha Ryan of Saskatoon earned wins in the S7, S8 and S10 50-m butterfly as did Aurélie Rivard of St-Jean-sur-Richelieu, Que., in the S10 100-m freestyle.

Other Canadian winners for the men were Danial Murphy in the S5 100-m freestyle, Riley McLean of West Vancouver, Jean-Michel Lavalliere of Quebec City and Nathan Stein of Surrey, B.C., in the S4, S7 and S10 50-m butterfly and Alec Elliot of Kitchener, Ont., and Dominique Rousselle of St-Jean-sur-Richelieu in the 100-m breaststroke.

Canada also won gold in the women's 4X100-m freestyle relay with Ryan, Abi Tripp of Kingston, Ont., Camille Bérubé of Ottawa and Bird.