Australia's five-time Olympic gold medallist Kaylee McKeown has set a world short course record in the women's 200 metres backstroke.

McKeown swam 1 minute and 57.87 seconds at the World Aquatics Swimming World Cup in Westmont, Illinois on Monday AEDT.

She dipped under American rival Regan Smith's previous world record mark of 1:58.04.

O'Callaghan crushes 200m world record

Mollie O'Callaghan breaks the women's short course 200m freestyle world record on day two of the World Aquatics Swimming World Cup second leg in Illinois.

McKeown's effort came a day after fellow Australian Mollie O'Callaghan broke the women's world 200m freestyle record at the same meet .

In Monday's final, McKeown edged out Smith (1:57.91), who had defeated the Queenslander in the 100m backstroke decider on Sun

See Full Page