Unbelievably, the Olympics end this Sunday. But never fear, if your appetite for obscure sport has yet to be sated you can look forward to the World Freerun Championships coming up on 3 September. The interior of the Roundhouse in Camden will be transformed into a challenging urban landscape for the competition and 20 of the world's best freerunners will be showcasing their awesome skill, fearlessness and artistry with Britain represented by Pip Anderson......