Join the 100 Challenge taking place in 100 cities across the country and accept the challenge to run or walk 100 miles by December 31, 2021.
Our finish lines look different, but how we reach them stays the same: by giving 100% day after day.
Event details and schedule
Now - December 31, 2021
100 U.S. cities
Challenge activities include running (treadmill and elliptical included), walking, hiking, wheelchair, and daily steps from your fitness tracker. Feel free switch up activities and break the mileage up however you like.
Track your mileage using the Under Armour MapMyRun app. All participants will receive 3 months free MVP access, so you can stay on track, get insights, and share progress with your friends as you conquer the challenge. Also, you can manually track your mileage with the custom 100 Mile Tracker and visualize your progress by crossing off the miles on the chart.
Tracking mileage is based on the honor system, and you can break the mileage up however you like (e.g., daily, weekly, etc.).
Rally your friends, family, coworkers, neighbors, run club, or whoever you like and join or create a 100 Challenge team. Hold each other accountable and encourage everyone along the way. Awesome team name required.
Protect your health and safety and the health and safety of others by social distancing while exercising. Please follow local and national guidelines.