Distance
145 KM
Elevation Gain
9500 M+
Start Date
Monday 24th August 2026
Race Start
Courmayeur - 23:50
Max Allowed Race Time
44 Hours 55 Minutes
The 2027 Edition Is in the Works
Event dates and registration opening dates will be announced soon. Leave your email address to be among the first to know.
ON LES TRACES DES DUCS DE SAVOIE
Beautiful, technical, wild, demanding, there’s no shortage of words to describe the TDS, a unique adventure exploring the villages along the Tour du Mont-Blanc and the mountain ranges that surround them. Taking on this extraordinary terrain means following trails where history meets the mountains, technical challenges blend with the warmth and hospitality of local communities.
Along the way, the TDS takes you through spectacular landscapes and challenging trails. You'll discover iconic locations, from legendary peaks and breathtaking panoramas to charming mountain hamlets. With its world-class scenery, welcoming atmosphere, and authentic mountain spirit, the TDS remains a truly international race and the adventure of a lifetime. Now it's your turn to write the next chapter of TDS history!