Martens takes 400 free world record below 3:40

STOCKHOLM -- Olympic champion Lukas Martens of Germany has broken the men's 400-meter freestyle world record at the Swim Open Stockholm. Martens became the first swimmer to break 3 minutes, 40 seconds, finishing Saturday's race with a time of 3:39.96.

That was 0.11 seconds better than the previous record set by fellow German Paul Biedermann in 2009, according to Olympics.com.



Biedermann's mark was set wearing the drag-reducing "super suits" that were eventually banned in 2010. The 23-year-old Martens won the 400-meter freestyle gold medal at the 2024 Paris Olympics with a time of 3:41.78.

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