A teenage markswoman won Rio's first gold medal for Team USA.
Ginny Thrasher, 19, nudged out two Chinese competitors in the 10-meter air rifle competition on Saturday.
The Virginia native is a rising sophomore at West Virginia University, where she's a member of the rifle team.
Thrasher has previously won NCAA individual championships in the air rifle and smallbore categories for the Mountaineer rifle team as well as three national titles.
Thrasher's best finish in a worldwide event previous to this Olympiad was at the World Cup in Munich, where she placed fourth this year.
She first fired a gun just five years ago.
Thrasher's score of 208 set a record for a final round in an Olympics.
The engineering major edged out Du Li by a single point. Li won gold in China in 2004.