The full competition schedule begins Saturday at the Olympics in Athens. The first medals of the games will also be awarded.
Medal events are scheduled in the sports of road cycling, diving, fencing, judo, shooting, swimming and weightlifting.
Thirteen specific finals include the men's cycling road race, the men's sabre final and women's weightlifting in the under-48 kilogram category. Two finals in judo will be contested in the women's under-48 kilogram and men's under-60 kilogram divisions.
Swimming begins with a splash as medals go out in the men's 400-meter freestyle and individual medley events, the women's individual medley and team four-by-100 freestyle race. Diving jumps in with the men's platform synchronized and women's three-meter springboard synchronized events.
Shooters will take aim at Olympic gold in the men's 10-meter pistol and women's 10-meter rifle.
Other highlights include the tip-off of the men's basketball tournament with the defending champion United States facing New Zealand. Football action resumes after a break for the Opening ceremonies Friday. Softball and volleyball competition also begins.