How can I change my challenge?
Open the goal linked to the challenge, and from the option tab choose the edit settings option. Here you can make changes to the settings of the goal, which will also affect the linked challenge.
All changes you make are immediately copied to all participants of that challenge. This way everybody is always working on the same objective.
As the creator of a challenge, you will be able to choose between different ranking types. To choose a ranking type, open the rankings and tap the settings button . You can choose between relaxed, normal and competitive. A more competitive ranking calculates the performance based on a broader range of past periods.