"In soccer you never know what is going to happen, " Aya Miyama said.

WSJ: London Olympics 2012: U.S. Women Top Japan 2-1 to Win Soccer Gold Medal

Another rocket, this one off the foot of Miyama from the top of the penalty area clanked off the crossbar in the 34th minute.

WSJ: London Olympics 2012: U.S. Women Top Japan 2-1 to Win Soccer Gold Medal

Elsewhere, Japan -- the current FIFA Women's World Cup holders -- beat Canada 2-1, thanks to goals from Nahomi Kawasumi and Aya Miyama at the Ricoh Arena in Coventry.

CNN: STORY HIGHLIGHTS