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picture OCC

31st August 2023

OCC

The ultimate challenge for mid-distance ultra-runners, the OCC is the 50K category final for the UTMB World Series.

Race Category

ws50KM

Distance

55km

Elevation Gain

3425m

Start Location

Orsières

Start Time

08:15

Max Allowed Time

14:30

THE LITTLE SWISS SISTER

THE LITTLE SWISS SISTER

A closer look at the course

All you need to know to participate in the OCC

All the information you need to know before starting an extraordinary adventure.

Regulations

Rules and Regulations

Check out the official OCC rules and regulations including registration process and fees, mandatory equipment, assistance policy, runner commitment and much more.

occ runner registration

Registration conditions

To participate in the OCC, you must have a valid UTMB Index in the 20K, 50K, 100K or 100M categories and at least 1 Running Stone.

insurance runner

Repatriation insurance

Each competitor must have a personal accident insurance covering search and rescue costs in France and Switzerland.

Mandatory equipment

Check the list of mandatory equipment and the heatwave or extreme cold kits that can be activated depending on the weather conditions.

Dive deep into the heart of the race

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