Hubert Kos UNSTOPPABLE in remarkable 100m back world record at Toronto World Cup | NBC Sports

Hubert Kos capped off his remarkable World Cup stretch with a dominant 100m backstroke swim in Toronto, where the 22-year-old set a new world record on the final day of action. #NBCSports #Swimming #HubertKos » 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 e...