McIntosh emphatically reclaimed the world record in the 400m freestyle ahead of a likely showdown with Katie Ledecky at this summer's World Championships.McIntosh, a triple gold medalist at the Paris Olympics,

McIntosh smashed the 400m freestyle world record in some style on Saturday, recording a time of 3:54.18 at the Canadian Swimming Trials.

After an incredible Olympic debut in Paris last year that saw her take home three Gold medals and a Silver, the 18-year-old McIntosh is continuing to add to her accolades. She was competing at the Canadian Swimming Trials on Saturday, where she captured yet another world record in the 400-metre freestyle.