Fastest 10K wins. Prove your speed for your chance to win a pair of iTunes Live tickets. Fastest man and woman from midnight Monday to midnight Thursday wins. Make sure you sync your K's before the challenge ends.

Congratulations to R.Fraser and sazzy27 who both receive a pair of iTunes Live tickets. Look out for event details coming soon.

Join the challenge at: http://nikeplus.nike.com/nikeplus/#all_challenges,887900401