In pictures: Thousands ride in 100-mile bike racePublished4 August 2013Shareclose panelShare pageCopy linkAbout sharingImage caption, Some 16,500 cyclists have taken part in a 100-mile race from London to Surrey and back, in the second day of the UK's largest ever mass participation cycling event.Image caption, London Mayor Boris Johnson, who also took part in the RideLondon event, started the race by dropping a Union Jack at the Queen Elizabeth Olympic Park in east London at 06:00 BST on Sunday.Image caption, The route, which was similar to last year's Olympic road cycling race, took riders on a scenic journey through London and into the Surrey countryside, finishing back in central London at The Mall. Earlier this week, Mr Johnson said he wanted to turn the capital into "a paradise for cycling" and the event was the ideal way to boost participation.Image caption, Riders from all over the country took part in the race, which organisers hope will become like the London Marathon. James Blackburn took this picture of fellow cyclist Alex Tinsley, from Twickenham Cycling Club, at 06:50 BST near Richmond Gate.Image caption, Many used the opportunity to raise money for charity, with some dressing for the occasion in wigs, tutus and fancy dress.Image caption, Famous faces included Rugby World Cup winner Matt Dawson, two-time Olympic rowing champion James Cracknell and Olympic champion sprint hurdler Sally Gunnell. Mr Cracknell was the first celebrity over the finish line with a time of four hours and 36 minutes. Mr Johnson finished in just over eight hours.Image caption, Spectators also turned out in force along the 100-mile route to show their support for family members and friends throughout the day.Image caption, The event ended with 150 professional cyclists - including Tour de France green jersey winner Peter Sagan - compete on an extended 140 mile route. The race was won by French cyclist Arnaud Demare.