The USA's Michelle Carter won the Olympic women's shot put gold medal on Friday by coming from behind to defeat defending champion Valerie Adams.

Carter looked set for the bronze medal before throwing a personal best 20.63m with her last attempt.

Adams was the firm gold medal favorite, having won the event at the Beijing 2008 and London 2012 Games. But the New Zealander was relegated to the silver medal with a best throw of 20.42m.

Hungary's Anita Marton clinched bronze with a best attempt of 19.87m.

Source : XINHUA