The X-Alpine increases from 111km-8400D+ to 140km-9300D+
The X-Traversée now includes the Col des Chevaux
Verbier Marathon 4000, with the ascent of Mt Rogneux (3084m), becomes the main race!
The Liddes Verbier 31km is no more!  There is a new race, the Verbier X-Plore 26km, instead

Full details on the page for each of the races

Registration are open !
Try one of our races! You can be sure of beautiful routes, with plenty for you to see – and for your legs to feel…

Register here

What is the UTMB World Series?

It is a world-class circuit which brings together iconic trail running races. As they have become one of the 30 UTMB World Series Events, the TVSB will be qualifying races for the UTMB circuit finals at the end of August 2023.

All informations here