Australian Mollie O'Callaghan broke the short course 200m freestyle world record for the second time in a week on Friday, winning in 1min 49.36sec at the World Cup stop in Toronto.
O'Callaghan sliced 41-hundredths of a second off the world record of 1:49.77 she set in Westmont, Illinois, just six days earlier -- a victory that made her the first woman to break 1:50 in the event.
Hungarian Hubert Kos and Canadian Josh Liendo followed up world record swims on Thursday with victories.
One day after posting a world record of 1:45.12 in the 200m backstroke, Kos won the 50m back in 22.67sec.
The Olympic gold medallist remained unbeaten in backstroke competition in the three-meet World Cup series and can try to complete a perfect run when he contests the 100m back on Saturday.
Canadian Josh Liendo continued his scintillating form in front of home fans with a 100m freestyle victory in 45.30sec.
Liendo, who won 100m butterfly silver at the Paris Olympics, had set a short course world record of 47.68 in the 100m fly on Thursday -- when he also won the 50m free.
