South Korea's Kim Jangmi held her nerve in a thrilling final
to take Olympic gold
in the women's 25m pistol.
The 19-year-old, who set a new Olympic-record score of 591 in qualifying, held off defending champion Chen Ying's challenge to win with a score of 792.4.
That was a single point more than Chen achieved, despite the Chinese star scoring five more points in the final.
Ukraine's Olena Kostevych won the bronze medal with a score of 788.6, while no Briton made the final.
Great Britain's Georgina Geikie failed to qualify for the eight-strong final, finishing 37th with a score of 562.
It was a remarkable performance by Jangmi, who enjoyed an astonishing World Cup debut at the London Olympic venue in April by setting a world record of 796.9 points.
She showed some nerves in the final, at one point falling behind Chen in the scoring, but she rattled off a five-shot final round of 51.8, including a perfect bullseye of 10.9, to take gold.
Serbia's Zorana Arunovic finished fourth with 787.3 points, just ahead of Russia's Kira Mozgalova on 786.9.