Coverage of the 2009 Barclaycard World Freerun Championship from London's Trafalgar Square, presented by Reggie Yates and Kirsten O'Brien. The best athletes in the world compete at the foot of Nelson's Column on a specially-constructed stage, with a crowd of nearly 10,000 fans packed in around them.
The runners leap, tumble and vault across the konk and cat boxes, bars, kicker walls, pipes and railings. 27 athletes from 17 different countries compete, including last year's winner Gabe 'Jaywalker' Nunez from USA, Britain's Paul 'Blue Devil' Joseph and Mexico's Erick 'Daer' Sanchez all hoping to win the world crown.
Commentary from David Croft.