USA women take first Olympic 3x3 basketball gold
Stay tuned with 24 News HD Android App
Stefanie Dolson of WNBA team Chicago Sky was the Americans' top scorer with seven points and Kelsey Plum contributed five points in the game that is played into just one basket.
Anastasiia Logunova's six points for the Russians were in vain.
The Americans were congratulated by IOC president Thomas Bach at Aomi Urban Sports Park.
China won the bronze medal after a 16-14 win over France.
Latvia took the men's title with a 21-18 win over the Russians as pre-tournament favourites Serbia had to settle for the bronze medal after beating Belgium 21-10 in the medal playoff.
The downsized form of basketball was added to the Olympic programme in Tokyo in a bid to attract a younger audience.