Athletics - The World Athletics trials and the British Grand Prix saw a number of British Athletes wearing PowerBalance. This included Olympic gold medalist, Mark Lewis Francis.
And here is footage of the guys in the 60 Metres finals
The World Trials footage can be seen through the following link: - http://www.channel4.com/search/?q=athletics+world+trials
The British Grand Prix: - http://www.bbc.co.uk/iplayer/search/?q=athletics%20british%20grand%20prix