Meet Léon Marchand, the French Swimmer Who Broke Phelps' Record

He beat the long-standing record by a smashing 1.34 seconds on Sunday, making him the world record holder in the long course 400m individual medley.

French Swimmer Breaks Michael Phelps' Last Remaining World Record

Marchand can handle Paris Olympics pressure

Frenchman Marchand breaks Phelps world record in 400m medley

20 Years, 342 Days Later, New Name on Swimming Mark

Marchand Tabbed Pac-12 Men's Swimmer of the Week - Arizona State University Athletics

ASU swimmer Léon Marchand preps for season following record-breaking summer

Arizona State's Léon Marchand swimming toward 2024 Olympic gold

Marchand can handle Paris Olympics pressure, says Bowman - SportsDesk

Leon Marchand Shatters Two French Records 43 Minutes Apart on Night 4 in Budapest

Leon Marchand can break Michael Phelps' last world record at swimming worlds - NBC Sports

France's swimming phenom Leon Marchand and the race for Michael Phelps' world record