The challenge is simple – see if you can rack up 50km (or more!) at Runstock. That’s 10 laps!

Pledge to run 50km+ when you enter and we’ll be ready for you with a special wristband controlled transition area with a water point that you can use between laps. You’ll also get a special 50k+ Ultra Challenge Vest to wear on the day and if you make it you’ll be awarded with a bespoke gold 50km+ medal. For those of you pushing the boundaries of endurance, we’ll have wristbands counting up to 85km too! The furthest distance achieved so far is 80km. Think you can better this?

After each lap you’ll earn a new wristband as you aim for the coveted Yellow 50km band and beyond. Then, when you’re done you’ll be presented with a 50km+ medal and will be invited up for an Ultra Finisher group photo during the prize giving.

To sign up for the Ultra Upgrade simply add an Ultra Upgrade product to your basket when entering. The upgrade costs £19 (early bird price of £15 until the end of August) and gets you a vest, access to the dedicated transition area and water point, and the medal if you finish 50km too!