The team of Nathan Adrian, Cullen Jones, Ben Wildman-Tobriner and Matt Grevers won their heat Sunday in 3 minutes, 12.23 seconds, erasing the old mark of 3:12.46 set by the United States at the 2006 Pan Pacific championships in Victoria, British Columbia.

The United States has not won the event at the Olympics since 1996, taking silver in 2000 and bronze in 2004.

Jones was part of the team that owned the previous record, becoming the first black swimmer to set a long-course world mark. -- AP