Take on a 50 km Ultra, a  historic 25 km or a NEW 10 km – and make it an active Easter! From our Windsor Racecourse base camp 2000 adventurers will head out on looped routes through the Great Park with fantastic views of the Castle, on to Runnymede, along the Thames Path, and takes in some wonderful countryside. You’ll get full support all the way, and a celebration finish back at base camp. It’s a great way to kick off the Ultra Challenge season!

Please note that the event is the Saturday AFTER Easter Weekend.

  • For all levels of experience
  • Join as an individual or team
  • 50km full challenge
  • 25km and 10km option
  • Half and quarter island option
  • Covered rest stops
  • Free food and drink
  • Walk at your pace
  • Run or jog
  • Fully signed route
  • Medics, marshals, massage
  • For charity or self fund
  • Medal, T-shirt, glass of fizz
  • Shuttle buses and transfers
  • Optional training walks
  • Challenge mobile app

Sign up and fundraising options

Charity Sponsorship – you pay a small registration fee, do lots of fundraising and we cover the cost of your event place!

  • 10km: £10 reg fee / fundraising target £100
  • 25km: Reg fee £20 / fundraising target £240
  • 50km: Reg fee £30 / fundraising target £360

Mixed Funding – pay half of the event place cost yourself, fundraise a bit less and we pay the balance of the event place cost.

  • 10km: Reg fee £22.50 / fundraising target £70
  • 25km: Reg fee £50 / fundraising target £150
  • 50km:Reg fee £75 / fundraising target £225

Own Place – you pay the full cost of the event place – fundraise whatever you want, with no set target or deadline, and there’s no cost at all to the charity.

  • 10km: Reg fee £39 / raise what you can
  • 25km: Reg fee £89 / raise what you can
  • 50km: Reg fee £139 / raise what you can


Email fundraising@bowelresearchuk.org if you have any questions!