A member of the fitness challenge group can easily opt-out of the group by navigating to the Member info page in Fitness Tools and selecting View Fitness Challenge Group. From here, click the Remove Me From Group button and click OK on the confirmation dialog box. Note: a special case exists for the member who created the group. They cannot remove themselves from the group as this would destroy the entire group. However, they can change the End Date of the group to a date in the past which would effectively end the challenge. This should happen only if no one is actively participating in the group.