American runner Lashinda Demus officially became an Olympic champion at the age of 40 and more than a decade after the 2012 London Games.
Demus was formally reallocated the gold medal in the 400-meter hurdles by the International Olympic Committee (IOC) because of the disqualification of Natalya Antyukh in fallout from the Russian doping scandal.
Demus will receive a gold medal from the IOC to add to her world title won in 2011.
Zuzana Hejnová of Czechia was upgraded to silver, and the bronze was reallocated to Kaliese Spencer of Jamaica.