EndedAltra
Chamonix | Run Grand Balcon Sud
Aug 10 – Sep 6, 2026
This challenge ended on September 6, 2026. You can no longer join it, but here are some you can.
Goal
Run the Altra segment
Reward
A chance to win one of 10 pairs of Altra Running shoes* and more**!
Prize open to
Austria, Germany, France, United Kingdom, Italy, Netherlands. Anyone can join for the badge.
Qualifying activities
Run
See it on Strava 




