Olympic champion Lukas Martens of Germany broke the men's 400-meter freestyle world record that had stood since 2009.

Olympic champion Lukas Martens of Germany has broken the men's 400-meter freestyle record at the Swim Open Stockholm. Martens became the first swimmer to break the 3 minute, 40 seconds barrier, ...

Olympic champion Lukas Martens of Germany has broken the men’s 400-meter freestyle ... Saturday's race with a time of 3:39.96. That was 0.11 seconds better than the previous record set by ...

STOCKHOLM (AP) — Olympic champion Lukas Martens of Germany has broken the men’s 400-meter ... s race with a time of 3:39.96. That was 0.11 seconds better than the previous record set by ...

STOCKHOLM (AP) — Olympic champion Lukas Martens of Germany has broken the men's 400-meter freestyle record at the Swim ... finishing Saturday's race with a time of 3:39.96.