Test Yourself in the Marathon Challenge, brought to you by AFTERSHOKZ.

Run a mile in the mystery time for your chance to win this amazing prize at the show.

It’s very simple to enter – run a mile on one of our treadmills at the Marathon Challenge feature and match the mystery time that we have selected.

It’s not the quickest time that wins, it is simply the person that runs the closest to our mystery time over the weekend! (HINT: It’s slower than 7 mins but faster than 12!)

So why not bring your trainers and try your luck? Someone from the show will win a place at the 2020 Berlin Marathon.