Ranked by percentage difference over the No. 2 performer in history, here are the most dominant men's world records.

In an interview following the end of the World Championships, Leon Marchand suggested the 400 freestyle could be part of a ...

The United States, which had a frustrating swim world championships, ended on a high note with a world record in the women’s ...

Michael Phelps and Ryan Lochte were among those to call out a slow start at the world championships in Singapore. The sky isn’t falling but L.A. looms large.Cha ...

The Americans set a world relay record and piled up three gold medals Saturday in what’s been an otherwise frustrating ...

Katie Ledecky and her female teammates led Team USA to success at the swimming world championships in Singapore, despite challenges including a gastroenteritis outbreak. While the women excelled, ...

Katie Ledecky's sustained brilliance and a late gold-rush by her female teammates added gloss to an underwhelming campaign ...

Katie Ledecky's sustained brilliance and a late gold-rush by her female teammates added gloss to an underwhelming campaign ...

It was the middle of the night in Singapore, Friday giving way to Saturday, when the caustic Instagram story began making its ...

The United States, which had a frustrating swim world championships, ended on a high note Sunday with a world record in the ...