It is 3,949 miles from the surface of the Earth to the centre of the Inner Core and so we challenge you to Run, Walk or cycle the equivalent distance without facing the fiery temperatures ! You can use indoor equipment or use the lovely outdoors. However you do your miles, is absolutely fine with us. There is absolutely no time limit on this challenge, so please feel free to finish as quickly as you want.


How does it work ?


Purchase your entry into our challenge


Download the app at : - for Ios – for Android


Register an account on the app if this is your first challenge with us at Race the World. Your password will need at least 1 Upper case, lower case, numerical and special characters in the password.


Link Your strava account, if you have one. This will pull any miles done after activation, directly into the app.


Add a challenge or Add a team if you have purchased a team challenge. You will need your order number for this. The RTW team will then activate your account, please allow up to 24 hours for this to happen, although it will normally be much quicker. You will get an email confirmation of activation.

You can still get started in the meantime, just manually add any miles done prior to activation.


Do your miles, and watch your progress with the miles ticking down to zero and the finish line. If you would like to set a start date for your challenge prior to registration, just manually add any miles into the app already done.


Once you have completed all of your miles, then an email will come automatically through to you and the RTW team to let us know that you have finished and your medal will go out to you in the post. Please allow up to 2 working days for dispatch of your medal which will be posted 1st class.


How will it work if we are a part of a team ?


  • Purchase your entry into the event, choosing the number of people you would like in your team before you checkout.  With that entry fee everyone will get a medal.


  • The Lead booker then set up the event in the App and invite their team members to join in.


  • All medals for the team will be dispatched to the lead booker.

Journey to the Centre of the Earth