Updated

The United States began Day 8 of the 2012 Olympics with a narrow lead in the medal count and, after China briefly tied them for No. 1, the USA has now retaken the lead by one medal.

The United States surged back into the lead thanks to another strong day in the pool. Team USA won gold in both the men's and women's 4x100m medley relays. The men's team won thanks in part to strong performances from Michael Phelps and Nathan Adrian. Adrain swam the final leg in 46.85.

Team USA also got off to a good start in Track & Field with Carmelita Jeter taking home a sliver medal in the women's 100m and Galen Rupp winning a silver medal in the men's 10,000m. Will Claye also added a bronze medal in the men's long jump.

Here's a more complete look at the medal count:

United States: 54 (26 gold, 13 silver, 15 bronze)

China: 53 (25, 16, 12)

Great Britain: 29 (14, 7, 8)

Russia: 28 (3, 15, 10)

Japan: 24 (2, 10, 12)

For a complete breakdown, visit Sports Illustrated's medal count tracker.

For more on the Olympics, check out SB Nation's London 2012 Olympics Hub.