On 6 June 2005 , the IOC released its evaluation reports for the five candidate cities . They did not contain any scores or rankings , but the report for Paris was considered the most positive . London was close behind , having closed most of the gap observed by the initial evaluation in 2004 . New York and Madrid also received very positive evaluations . On 1 July 2005 , when asked who would win , Jacques Rogge said , " I can not predict it since I do n't know how the IOC members will vote . But my gut feeling tells me that it will be very close . Perhaps it will come down to a difference of say ten votes , or maybe less . " On 6 July 2005 , the final selection was announced at the 117th IOC Session in Singapore . Moscow was the first city to be eliminated , followed by New York and Madrid . The final two contenders were London and Paris . At the end of the fourth round of voting , London won the right to host the 2012 Games with 54 votes to 50 . Tragically , the celebrations in London were short-lived , being overshadowed by bombings on London 's transport system less than 24 hours after the announcement
bombings on London 's transport system
7 July 2005 London bombings
2012 Summer Olympics