On the backs of swimmer Michael Phelps and gymnast Simon Biles, the United States has taken the outright gold medal lead over China at the 2016 Rio Games after Day 6. As of publishing Friday, Team USA saw its total medal lead fall by one, but thanks to Phelps’ 22nd career gold and Biles all-around gold, the squad has now secured 16 Olympic titles compared to China’s 11 this year.

The U.S. won six medals on Thursday, five of which were gold, upping its grand total at the Games to 38, compared to China’s 30 . Japan also strengthened its hold on third place in the medal standings, securing four more medals for a grand total of 22 with seven gold.

Australia remains in fourth place with five gold and 15 total medals, followed by South Korea and Hungary each with five gold, and Russia, Great Britain, and Germany next up with four apiece.

Phelps continued to cruise in Brazil on Day 6, locking up his fourth gold at this year’s Games by blowing away the entire field in the men’s 200-meter individual medley, including teammate Ryan Lochte. Ryan Murphy also chipped in a gold in the men’s 200-meter backstroke.

Phelps, who still has one more event left, upped his career total to 15 individual gold and 26 medals.

Biles, 19, and U.S. teammate Aly Raisman won the gold and silver, respectively, in the women’s all-around final over Russia’s bronze victor Aliya Mustafina. Competing in the first Games of her career, Biles became the first woman in 20 years to win consecutive world and Olympic all-around titles.

"Every emotion hit me at once so I was just kind of a train wreck," Biles said afterward. "Everything was going through my head but mainly it was like I had finally done it and when that hits you, you can't really stop the emotions."

China also took seven more trips to the medal podium on Day 6, sheering down Team USA’s overall medal lead by one for the second straight day. The Chinese are poised to sweep the table tennis events after Long Ma defeated 2012 London champion and teammate Jike Zhang in the men’s final, and Ning Ding won gold on the women’s side.

Japan’s latest gold came in the women’s 200-meter breaststroke by way of Rie Kaneto, who beat out Russia’s silver medalist Yulia Ekimova, and China’s bronze Jinglin Shi.