Photo of Caeleb Dressel

Caeleb Dressel Breaks Phelps’ World Record in 100 Butterfly

GWANGJU, South Korea — Caeleb Dressel broke Michael Phelps' world record in the 100-meter butterfly on Friday at the world swimming championships. The American won his semifinal heat in 49.50 seconds — 0.32 seconds better than Phelps' mark set at the 2009 w...