The Angry Elf 100 Mile Challenge is a virtual challenge that participants can choose to either run or walk 100 miles. This challenge starts on December 1st, 2020 but participants can choose any date after that to begin their challenge. Also, there is no required amount of time that the challenge needs to be completed by. Set your own goals whether you want to complete in 30 days, 45 days, or 60 days! The main goal is to push yourself to reach that finish line of completing 100 miles.