Nadzeya Ostapchuk stripped of women 's shot put gold after failing a drug test . Score: 6 New Zealand 's Valerie Adams has been awarded the gold medal . Russia 's promoted to silver medal position , with China 's Ligiao Gong now third .
Nadzeya Ostapchuk stripped of women 's shot put gold after failing a drug test . The Belorussian tested positive for the banned substance metenolone . New Zealand 's Valerie Adams has been awarded the gold medal . Russia 's promoted to silver medal position , with China 's Ligiao Gong now third .