Gretchen Olson

Gretchen Claire Walsh (born January 29, 2003) is an American competitive swimmer and the world record holder in the 100 meter butterfly, 4×100 medley relay, mixed gender 4×100 medley relay, 50 meter butterfly (short course), 100 meter butterfly (short course), and 100 meter IM (short course). She won the silver medal in the 100 meter butterfly at the 2024 Summer Olympics in Paris, where she also set the Olympic record in the 100 meter butterfly in the semifinals with a time of 55.38. She additio…