Femke Bol becomes the first woman in a decade to defend the women's 400m crown at World Championships, holding off a tough effort from Jasmine Jones who won silver for Team USA #NBCSports #FemkeBol #JasmineJones » 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 compelling original programming. NBC Sports is an established leader in the sports media landscape with an unparalleled collection of sports properties that include the Olympics, NFL, Premier League, Big Ten, NASCAR, PGA TOUR, the Kentucky Derby, Tour de France and many more. Subscribe to our channel for the latest sporting news and highlights! Visit NBC Sports: https://www.nbcsports.com Find NBC Sports on Facebook: https://www.facebook.com/NBCSports Follow NBC Sports on Twitter: https://twitter.com/nbcsports Follow NBC Sports on Instagram: https://www.instagram.com/nbcsports/ https://www.nbcsports.com/nfl/sunday-night-football https://nbcsports.com/motors/nascar https://nbcsports.com/soccer/premier-league Femke Bol goes BACK TO BACK for historic 400 hurdles World Title, USA's Jones silver | NBC Sports https://www.youtube.com/nbcsports