In our final episode of the season we are joined by Centurion Race Director and highly decorated UK ultrarunner James Elson.

James has spent 15 years building Centurion from the ground up and talks to us about the process behind making these races work, the reality of what goes into them, how much they cost and the future of UK ultrarunning.

We also answer some of your questions.

You can find your first ultra at Centurionrunning.com.

This series is once again sponsored by our friends at XMILES - your one stop nutrition shop, You can get 10% off your orders using the code RWSY10.