I think this is going to be without a doubt the hardest challenge yet. I think it will be between Billy and Ky. Big loti will get left behind with whincup in third. It will be interesting to see if the athletes learnt anything from the ironman challenge, like not to go out with all guns blazing and tire themselves out in the first leg (eg: Hooker went out to hard and fast in the run and just had nothing left at the end!) so who ever paces themselves will win this one. Billy to win!!!!

What do you think?