Olympic champion Lukas Martens of Germany has broken the men’s 400-meter freestyle record at the Swim Open Stockholm STOCKHOLM -- Olympic champion Lukas Martens of Germany has broken the men's ...

STOCKHOLM — 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 ...

STOCKHOLM (AP) — 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 ...