Gretchen Walsh sets THIRD Swimming World Cup record in 100m butterfly win | NBC Sports

American Gretchen Walsh pulls away from the field to win the women's 100m butterfly with yet another Swimming World Cup record after doing the same in the 50m fly and 100m medley in Carmel, Indiana. #NBCSports #Swimming #GretchenWalsh » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch Live Sports on Peacock: https://peacocktv.smart.link/v82e9dl56 NBC Sports Group serves sports fan...