USA Track and Field kicks off its quest for gold with preliminary and qualifying rounds taking place on Friday.
Los Angeles-natives and Team USA standouts Allyson Felix and Carmelita Jeter compete in the 100 meter preliminary round at 2:40 a.m. PT. If they qualify, they'll move on to round one at 11:40 a.m. PT. Round one of the women's 400 meter dash features Dee Dee Trotter from Twenty Nine Palms, Calif..
Amy Hastings, from Long Beach, competes in the last event of the day, the 10,000 meter final at 1:25 p.m. PT. Costa Mesa's Sharon Day competes in four events on Friday in the women's heptathlon starting with the 100 meter hurdles at 2:05 a.m..
Other Olympic events of interest taking place on Friday include the the women's 200 backstroke final featuring Team USA's teenage phenom Missy Franklin at 11:30 a.m. PT, the men's 100 butterfly final featuring world-record holder Michael Phelps at 11:37 a.m. PT, women's volleyball against Serbia at noon, and women's basketball against the Czech Republic at 2:15 p.m. PT.
You can find a complete medal tracker at SI.com.