Olympics-McIntosh smashes 400 metres IM record at Canadian Olympic trials

FILE PHOTO: Fukuoka 2023 World Aquatics Championships - Swimming - Marine Messe Fukuoka Hall A, Fukuoka, Japan - July 30, 2023 Canada's Summer McIntosh celebrates after winning the women's 400m individual medley final REUTERS/Stefan Wermuth/File Photo

TORONTO (Reuters) - Summer McIntosh broke her own world record in the 400 metres individual medley at the Canadian Olympic swim trials on Thursday, firing a warning shot to competitors ahead of the Paris Summer Games.

Roared on by a hometown crowd the 17-year-old sensation got to the wall first in a time of four minutes 24.38 seconds, smashing her old mark of 4:25.87 set last year.