Emma Hayes added to her reputation as one of the best coaches in the women's game by guiding the United States to Olympic gold in her first tournament in charge.
The 47-year-old Englishwoman only took the reins of the US side a little under three months ago, but she has worked wonders with a transitional team and turned them into Olympic champions.
Mallory Swanson's second-half goal was enough to secure the Americans' first Olympic gold since back in 2012 - and their fifth in total.
An entertaining clash at Parc des Princes was deadlocked prior to the goal: Swanson's composed finish under Brazil keeper Lorena enough to clinch gold.
A lengthy spell of injury-time at the end of the game saw Brazil go close to levelling, but US keeper Alyssa Naeher pulled off a good save to deny Adriana.
The Brazilians were unable to find a way back into the game, however, and their wait for a first international women's title goes on.