Competitors for the ChamJam can now sign up online at the ChamJam website.  

The annual event runs from 12-17 March and includes Boarder and Skier X, Big Air and Open Half-Pipe competitions, as well as featuring the 10th Boss des Bosses.  This year's event counts as qualifying for the X-Games - an extreme competition held in the States.

The Boss des Bosses - a bumps race between teams from the resorts of Méribel, Val d'Isère, Verbier, Zermatt and Chamonix - remains the original inspiration behind the ChamJam, although only a small part of the week itself.  

Chamonix have won the event for the last three years, under a strong challenge from Méribel and Zermatt.  To find out which of the 19 person strong teams wins this year, you can follow events on Natives or on the Grands Montets itself on 16 March.