What if I lose my username and password for the AF Challenge portal? 20 September 2021 00:59 Updated You will receive an email at the beginning of the challenge with your login details. If you misplace this, please contact your challenge club. Related articles Can I change my workout and meal plan once I have started the AF Challenge? My Anytime Fitness Health Hub login isn't working. How do I enter to be the national winner of the AF Challenge? I have some membership billing questions. I want to cancel my membership. How do I go about it? Comments 0 comments Please sign in to leave a comment.