Runners often get preoccupied with the weekly long training run, and we get it: 15 or 18 or 20 miles on the calendar looms ...

You can purchase the Strava + Runna Combined Subscription starting today through the Strava mobile app or the Strava website.

It's around 100Kcal per mile – but unless you're the world's most average human, you're not hitting exactly that ...