But there are still plenty of tickets. Forty per cent of swimming and beach volleyball tickets are still available and the majority of tickets to the blue-ribbon athletics events featuring Maurice Green and Ato Boldon and the relay run of Michael Johnson are still for sale.
Organisers predict a rush of buyers once the final fields are announced.
But for swimming and track and field, this could be just a week before the Games start on August 29. The world swimming championships will be held in Fukuoka, Japan, in July and the world athletics championships in Edmonton, Canada, in early August. Most sports feature a finals-only concept, with the world's best, and an Australian wildcard, invited to perform. The Age Company Ltd 2001. Any unauthorised use, copying or mirroring is prohibited.