GB’s Charlotte Worthington wins first ever BMX freestyle Olympic gold with history-making trick, America’s Hannah Roberts claims silver, Switzerland’s Nikita Ducarroz wins bronze. Charlotte Worthington completed a backflip 360 - the first time the trick has ever been performed in women’s competition - which blew away the Ariake Sports Park, and was enough to beat a near-perfect first run from three-time world champion Hannah Roberts, who finished in second. Switzerland's Nikita Ducarroz just pipped Roberts' American team-mate Perris Benegas to the bronze medal.