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 women's 400-metre freestyle world record Saturday night, touching the wall in three minutes 54.18 seconds at the national swimming trials in Victoria.

Fresh off two world record chases in as many days, Summer McIntosh had an easy go of it in Monday’s prelims of the 200 IM at Canadian Trials.