Some 900,000 Olympic tickets are going back on sale, starting on Friday for those who were unsuccessful in the ballot and second chance sales.
Some 20,000 people will now have first dibs in an exclusive 31-hour window from 11am on May 11th to purchase up to four tickets for a single event.
A million other unsuccessful ballot applicants can then apply for tickets from 13-17 May.
Unsold and Olympic Park tickets will then be made available to the public.
The 20,000 will be able to choose from any event including the opening and closing ceremonies, for which limited tickets are available. However Olympic Park tickets will not be part of their sale window.
From 13 to 17 May, the group of one million fans who applied in the first ballot but failed to get any tickets will have the chance to try to buy tickets, including 70,000 Park tickets.
Different sports are available from 11am each day, as follows:
13 May - Hockey, Tennis, Wrestling (Freestyle), Wrestling (Greco-Roman), Beach Volleyball and Football
14 May - Athletics (Race Walk), Athletics (Marathon), Canoe Slalom, Canoe Sprint, Shooting, Swimming, Volleyball, Weightlifting and Cycling (Track)
15 May - Equestrian (Dressage), Equestrian (Eventing), Equestrian (Jumping), Diving, Synchronised Swimming, Handball, Table Tennis, Swimming (Marathon) and Water Polo
16 May - Basketball (North Greenwich Arena sessions), Badminton, Sailing, Gymnastics (Artistic), Gymnastics (Rhythmic), Gymnastics (Trampoline), Judo, Taekwondo, Boxing and Fencing
17 May - Archery, Basketball (Basketball Arena sessions), Cycling (BMX), Cycling (Mountain Bike), Cycling (Road), Modern Pentathlon, Rowing, Triathlon and Olympic Park tickets
Any tickets which are unsold will be rolled forward into the next day's sales. Applicants can only apply for one session and once they are successful will be unable to buy any more tickets during this sales period.
On 23 May any unsold tickets will be made available to the general public and Olympic Park tickets will go on general sale.
The payment method will be by debit, credit or prepaid Visa card.
From 29 May, new tickets priced from £5 to £15 will go on sale for the cycling road race at Box Hill in Surrey, the cycling individual time trial at Hampton Court Palace, for the Hill and big screen at Wimbledon.
Those with day tickets for the Olympic Park or for sporting events there can also buy tickets for the same day for the Orbit Tower. Tickets will cost £15 full price and £7 for young people aged 16 or under or seniors aged 60 or over.