More than 1.8 million people have tried to snap up 20 million tickets for the London 2012 Olympics, organisers have said.
The six-week deadline closed at 1am on Wednesday, an hour later than originally intended, when the online system temporarily began to seize up under a last-minute surge for tickets.
With more than 50% of the 650 sessions oversubscribed, many tickets for the events will be decided by a random and automated ballot.
The opening and closing ceremonies were among the first sell-outs. Sports fans could pay up to £2,012 for the showpiece opening ceremony.
Sports where Britain has high hopes of medal success topped the wishlist of sports fans who will find out in June if they have got any of the 6.6 million public tickets available.
Track cycling, including stars such as four-time Olympic gold medalist Sir Chris Hoy and rhythmic gymnastics where World and European champion Beth Tweddle will be hoping to add a 2012 Olympic title to her medal haul were early sell-outs.
The triathlon, which will feature the Brownlees brothers, Alistair and Jonathan, among the hot tips for gold sold out. The equestrian cross country and the modern pentathlon also sold quickly.
They will all be decided by a ballot, as will the majority of the sessions in swimming and tennis.