Dutch runner Bol smashes her own indoor 400m world record

Femke Bol of the Netherlands cruises to gold in women's 400 hurdles at worlds

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Femke Bol Breaks Her Own World Indoor 400m Record

Femke Bol breaks own 400m world record at World Athletics Indoor Championships – Dedicated Tutorial

Lithuania's Meilutyte smashes world record – FBC News

Dutch runner Bol smashes her own indoor 400m world record

Dutch sprinter Femke Bol sets indoor world record in 400 meters - ESPN

Dutch runner Bol smashes her own indoor 400m world record

Olympics-Athletics-Warholm destroys world record to win 400m hurdles gold

World indoor 400m record falls to Femke Bol - AW