This challenge is for everyone especially the ones that get easily discouraged. Lets make this a life change and fun challenge at the same time.

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Freunde herausfordern, Lose most weight.

Die Ergebnisse dieser Challenge werden automatisch aus dem berechnet, was du in deinem Trainingstagebuch hinzufügst.

Active from 2010-09-29 and 2011-04-01.