Along with retaining the overall lead with a combination of 43 gold, silver and bronze medals acquired, the United States also managed to overtake China in gold medals on Friday with a strong seventh day of competition.
Despite losing a small amount of ground as China added eight total medals to the United States' six, the Americans picked up golds from Michael Phelps in the 100m butterfly, Missy Franklin in the women's 200m backstroke and Katie Ledecky in the 800m freestyle on Friday. Phelps, who picked up his record-setting 17th career gold with the impressive victory, will have a final chance to medal on Saturday in the men's 4x100m individual medley relay.
Here are the current leaders after seven days, and with 111 of the 302 events decided:
1. United States, 43 (21 gold, 10 silver, 12 bronze)
2. China, 42 (20, 13, 9)
3. Russia, 23 (3, 12, 8)
4. Great Britain, 22 (8, 6, 8)
5. Japan, 21 (2, 8, 11)
A full medal count tracker from Sports Illustrated can be found here.