Japan's Kaori Icho became the first woman to win three Olympic wrestling gold medals by beating China's Jing Ruixue in the freestyle 63kg final.
Icho triumphed in two rounds at ExCeL to add another gold to those she won at Athens 2004 and Beijing 2008.
Jing is a two-time world champion at 67kg but was no match for Icho, who won the first round 3-0 before clinching victory with a 2-0 score in the second.
Mongolia's Battsetseg Soronzonbold and Russia's Lyubov Volosova won bronze.
Soronzonbold beat Canada's Martine Dugrenier in two rounds, before three-time world silver medallist Volosova overpowered Monika Ewa Michalik.