btwb

Challenges are special fitness tests that pop up throughout the year that btwb users can participate in. They can be as simple as max double unders in 2 min...

You'll need to register for a Challenge. When new challenges pop up, you can register for them from their Challenge screens in the btwb app. Simply find...

It depends on the challenge. Some will be included with btwb membership. Others may include an additional fee, as well as options to purchase other challeng...

All earned Challenges badges can be found via the Challenges tab on the Badges screen. See here for more details. 

Earned Series challenges are unique challenges that allow participants to earn a t-shirt that matches the level of their performance. Participants will sign...