Gretchen Walsh Sets a World Record in the 100-Meter Butterfly at the U.S. Olympic Trials

Gretchen Walsh set a world record in the women’s 100-meter butterfly, posting a time of 55.18 seconds in a semifinal heat at the U.S. Olympic swimming trials

Gretchen Walsh set a world record in the women’s 100-meter butterfly, posting a time of 55.18 seconds in a semifinal heat at the U.S. Olympic swimming trials