A 3.4km uphill course between Samedan and Alp Muntatsch. A different in altitude of 420 metres. And every second counts. You stamp your card at the start and set off along the track – on your bike, jogging or Nordic walking. When you arrive up at Alp Muntatsch, you stamp your card again. A few days later, you can go online to www.strava.com/timetrack to see your time and ranking for the week or month, or even your position on the league table. And see how just a few seconds can make all the difference.