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Regan Smith ties her own world record to win 100m backstroke at Swimming World Cup | NBC Sports
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Regan Smith powered to matching her world record en route to victory in the women's 100m backstroke final at the World Aquatics Swimming World Cup. #NBCSports #Swimming #ReganSmith » 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 fans 24/7 with premier live events, insightful studio sho...