2023 Winter Workout Challenge Sign up to stay accountable, receive updates and be eligible for prizes at the end of the 8 week challenge. SIGN UP We begin on Monday January 2nd 2023.Find the Winter Workout Challenge Calendar Here. CALENDAR YouTube Workout Playlists WEEK 1 WEEK 2 WEEK 3 WEEK 4 WEEK 5 WEEK 6 WEEK 7 WEEK 8