Shaine Casas blitzes to 400m medley PB in World Cup win at Westmont | NBC Sports

Shaine Casas set a new personal best by 5.5 seconds in his strong 400m individual medley showing at the Swimming World Cup in Westmont. #NBCSports #Swimming #ShaineCasas » 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 shows, and com...