The United States picked up its second swimming title of the Games with a victory Sunday in the men's 800 freestyle relay.
The Americans had to hold off challenges from Australia and Sweden before clinching the gold to follow Tom Dolan's victory in the 400 individual medley.
The U.S. quartet of Josh Davis, Joe Hudepohl, Brad Schumacher and Ryan Berube won in 7 minutes, 14.84 seconds, besting Sweden (7:17.56) and Germany (7:17.71).
They could not sustain a challenge on the world mark of 7:11.95 set by the Commonwealth of Independent States, successors to the Soviet Union, at the Barcelona Games.
Davis led off, replacing Jon Olsen, who swam anchor in the morning qualifying.
Hudepohl fell to third place on the second leg, but Schumacher pulled the Americans back to a slight lead. Then Berube, who swam the first leg in the morning, nailed the final leg, pulling away to hit the wall.
The gold brought America's swimming haul to four medals for the night and seven _ two golds, four silvers and a bronze _ in two nights.
Dolan held off Michigan teammate Eric Namesnik to win the 400 IM gold in 4:14.90.
"It's an incredible feeling," Dolan said. "I think it's something every kid dreams about."
Finland's Jani Sievinen had been a medal favorite but failed to advance from the morning preliminaries with a swim nearly seven seconds slower than Namesnik, who qualified fastest.
Tom Dolan and Eric Namesnik, teammates at the University of Michigan, battle neck and neck in the men's 400-meter individual medley. Namesnik leads at the last turn, but Dolan surges ahead and reaches for the win. Curtis Myden finishes third.