Athlinks claims to have the "most comprehensive database of endurance race results and events anywhere in the world". Users can mark their own race results, and build a thorough list of their race history.
The website also has a "rivals" feature, where a user can compare themselves to athletes with similar results. Like other social network websites, a user maintains a group of "friends". In addition, users may keep a training log, list their gear items, upload photos, and present a schedule of future events.
As of October 2009, the website claims to have results for over 133,000 races.