Track your rides and runs via your iPhone, Android or GPS device, analyze your performance, and compare with friends.
Runners will earn up to four digital finishers badges on their dashboard for every 1,000 meters climbed during the Challenge period.
The Challenge starts and ends based on each athletes local time zone.
Manual entries, treadmill runs, or runs marked private will not count towards your Challenge effort.
All activities logged during the Challenge period must be uploaded to Strava no later than November 7th, 2013.
To learn how elevation gain is calculated for your activity, visit this Knowledge Base article.