By Canadian Press

Canada’s Summer McIntosh breaks own world record in 400-metre individual medley

Jun 11, 2025 | 6:17 PM

VICTORIA — Teen sensation Summer McIntosh has broken yet another record at the Canadian Swimming Trials.

The 18-year-old from Toronto swam the 400-metre individual medley in four minutes 23.65 seconds, breaking the world record 4:24.38 she set at the Olympic trials in Toronto last May.

It’s the third time McIntosh has set a new world record at this year’s Canadian trials, after she posted a new mark in the 200m individual medley on Monday and in the 400m freestyle on Saturday.

She also broke her own Canadian records in the 800m freestyle Sunday, finishing in 8:05.07 — nearly five seconds faster than her previous time — and in the 200m butterfly on Tuesday.

McIntosh also holds the world record in the 200m butterfly.

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She won three golds and one silver at the Paris Olympics last summer, becoming the first Canadian to ever take three golds at a single Games.

This report by The Canadian Press was first published June 11, 2025.

The Canadian Press