West Ham have agreed a deal to sell Upton Park to a developer once the club have completed their move to the Olympic Stadium in 2016.
Plans to make major changes at the £429 million Olympic Stadium have been given the green light.
West Ham will be officially named as the main tenant of London's Olympic stadium in a deal which will cost taxpayers millions of pounds.
The scene is set for today's National Lottery Anniversary Race, which is taking place at the Olympic Park in Stratford, east London:
Morning everyone. It's the big day!!! You are going to be one of the first #backtothestadium
Paula Radcliffe, who missed out on competing at the London 2012 Olympics due to injury, said she is "looking forward" to the National Lottery Anniversary Run later today:
Marathon world record-holder Paula Radcliffe will run the first event to be staged at London's Olympic Stadium since the 2012 Games later today.
Radcliffe, who was unable to compete at the London Olympics due to injury, will join a host of sporting stars including Olympic gold medallists Sir Chris Hoy and Victoria Pendleton, who are more used to cycling than running.
They will be among the 12,500 people taking part in the five-mile (eight-kilometre) National Lottery Anniversary Run, in which competitors will complete the final 328 yards (300m) on the Olympic Stadium's track.
Radcliffe has predicted the event would "recapture the spirit of the London 2012".
– Karren Brady, West Ham United Vice-Chairman
"I would like to thank each and every supporter that took the time to have their say on what is an historic and monumental decision for the Club. We must now engage further with the fans who've requested more information but it is fantastic to know that the consensus among our supporters is that they are behind the move.
"Now we know we have their support to advance this incredible project, we can look forward to the busy, but exciting,three years ahead working together to ensure that this world-class arena exceeds their expectations."
West Ham have said a poll of 12,000 of their fans found that 85% were in favour of the club moving to the Olympic Stadium from Upton Park. Another 10% said they would consider supporting it but wanted more information. The poll was carried out by SMG YouGov.
The poll found the majority of fans thought the move would help boost the club and provide more funds to improve the team. Others said the Olympic Stadium would provide a better experience for the fans. 48% of fans said they would attend more of the club's games if West Ham played in Stratford.
On Sunday 21st July, members of the public will be able to take part in a five-mile National LotteryAnniversary Run in the Olympic Stadium. Ten thousand places will be on sale from 9.00am tomorrow, Thursday 25 April 2013, and will be allocated ona first come, first served basis.
The Olympic Stadium is reopening to the public for the first time, and 10, 000 people will be able to follow in the footsteps of Olympians and Paralympians. Today, Mo Farah and Jonathan Edwards will be at the Park to launch ‘The National Lottery Anniversary Run’.
The National Lottery is to stage a five mile fun run inthe Olympic Park in July. The 10,000 runners will cross the 2012 finishing linein the Olympic stadium.
Friday & Saturday are now sold-out for the Sainsbury's Anniversary Games. Tickets are still available for Sunday’s IPC I'national Challenge