A date has not yet been set for the next round of London 2012 tickets sales but it will be after the football draw on April 24, London 2012 chief executive Paul Deighton announced.
Up to four million tickets are due to go on sale in the coming weeks but a breakdown and exact amount of tickets that will be up for grabs are still being worked out.
Speaking as the International Olympic Committee (IOC) co-ordination commission completed its 10th and final inspection of preparations before the start of the Games on July 27, Deighton said: "The reason I cannot tell you exactly is because every day we are finalising how many it will be.
"It will be in the region of a million non-football tickets. There will also be approximately 1.5 million football tickets and approximately 1.5 million Paralympic tickets. If you add them all together that is about another 4 million chances to go to the Games.
"As we finalise the very last details of the seating plan there will be more seats that become available.
"The schedule is not finalised because what we want to do is to make sure that it is after the football draw. It helps to know who you are going to watch when you are buying football tickets so we have pushed the sales back to after that on April 24.
"At the moment we are just determining how it fits in the schedule of all the other things that are going on around there."
There is a crowded schedule of events that is delaying the timing of the ticket sales, which had been expected to be in April.
Deighton said: "We have got test events, a command post exercise to test our command, control and communications systems. There is also a mayoral election. We just have to make sure that we fit the sale in around that so that it works as efficiently as possible."