Kathrine Switzer, 70, who 50 years ago was the first woman to officially run in the Boston Marathon, wore the same bib number and ran in the event on Monday in the US. When Switzer ran in 1967, officials roughly tried to stop her, angry a woman was running, but then her boyfriend pushed them off and she finished. She became a top runner and advocate for women in sport. Boston organisers said bib 261 will be retired in her honour.