Paris Olympics: Ariarne Titmus wins 400m freestyle gold with an incredible swim that left her American rival Katie Ledecky far behind in the 'race of the century'

In the so-called race of the century, the Tasmanian-born Titmus clocked three minutes 57.49 seconds to win from Canada's Summer McIntosh (3:58.37) and Ledecky (4:00.86).