Mollie O'Callaghan sets 200m freestyle WORLD RECORD at Toronto World Cup | NBC Sports

Australian Mollie O'Callaghan paced the women's 200m freestyle competition with a dominant showing at the World Cup in Toronto, setting a new world record a full second ahead of the previous mark. #nbcsports #swimming » 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 premi...