Simone Biles took a commanding lead in the women's gymnastics qualifying round. She and teammate Suni Lee advance to the all-around final Thursday. It was a one-two finish for the U.S. in swimming as Torri Huske took home gold in the women's 100-meter butterfly, a fraction of a second faster than teammate Gretchen Walsh. American swimmer Nic Fink tied for silver in the men's 100-meter breaststroke. U.S. men's basketball easily defeated Serbia. In an all-U.S. women's foil fencing final, Lee Kiefer [Lee Key-Fur] successfully defended her Tokyo gold medal title, beating fellow American Lauren Scruggs, who took silver. In mountain biking, USA's Haley Batten won silver in women's cross country, the highest finish the US has ever had in that event.