Gretchen Walsh lowers own 100m butterfly world record for fourth time

Walsh won in 54.33 seconds at the Fort Lauderdale Open in Florida, where she set her previous world record of 54.60s.

Gretchen Walsh lowers own 100m butterfly world record for fourth time
Walsh won in 54.33 seconds at the Fort Lauderdale Open in Florida, where she set her previous world record of 54.60s.