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Summer McIntosh has broken her second world record at the 2026 Canadian national swimming trials in Montreal. The 19-year-old from Toronto touched the wall in a time of 4 minutes 27.35 seconds — the eighth-fastest performance of all time in the discipline.

Teen star from Toronto falls short of own world record, posting 8th-fastest time ever

CBC Sports · Posted: Jul 06, 2026 6:00 PM EDT | Last Updated: 1 minute ago

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A women's swimmer prepares for a race.Summer McIntosh prepares to compete during Day 1 of 2026 Canadian national swimming trials in Montreal. (Daniel Harrison/Swimming Canada)

Summer McIntosh cruised to her second victory at Canadian national swimming trials in Montreal on Monday.

The 19-year-old from Toronto touched the wall in a time of 4 minutes 27.35 seconds — the eighth-fastest performance of all time in the discipline.

SUMMER MCINTOSH FOR THE WIN
McIntosh posts a 4:27.35 in the 400m individual medley to cruise to victory. It’s four seconds off her world record in the event.
This comes after all of the emotion of last night’s 200m butterfly world record. pic.twitter.com/8h0jdkx4yh

Devin_Heroux

McIntosh holds the world record in the event, posting her world-leading mark of 4:23.65 at national trials in 2025.

More to come.

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