CNN —Although Michael Phelps retired seven years ago, his legacy has continued to tower over swimming. But on Saturday, Phelps’ last remaining world record was smashed by 21-year-old Leon Marchand at the World Aquatics Championships in Fukoka, Japan, as the Frenchman completed the 400 meters individual medley in 4:02.50, shaving an enormous 1.34 seconds off Phelps’ previous mark. Phelps himself had held the world record for almost 21 years, setting a series of increasingly faster times during his stint as the world’s most dominant swimmer. “I’m two seconds faster than my previous record, I beat the world record, it’s amazing… I don’t know what to say, I’m so happy.”France's Leon Marchand competes in the final of the men's 400m medley. Meanwhile Australia’s Ariarne Titmus set a world record in the women’s 400 meter freestyle with a time of 3:55.38, so blistering that she held off Katie Ledecky in second place.

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Persons: Michael Phelps, Phelps ’, Leon Marchand, Frenchman, ” Marchand, “, Phelps, ” France's Leon Marchand, Manan Vatsyayana, Carson Foster, Australia’s Ariarne, Katie Ledecky Organizations: CNN, Olympics, Getty Locations: Fukoka, Japan, Beijing, AFP, Japan’s