19 & 20 February 2027Profondeville · Belgium
TRAIL DE
LA SIBÉRIE
The cold. The mud. You.
Two days. 14 races. A winter adventure like no other.
14formats
3 300participants in 2026
From 6 to 160KM
1 Octoberregistration opens
Official aftermovie
You think
you know
what awaits you.
Watch this instead.
From the ridges of the Meuse to the drenched singletrack, relive the 2026 edition before lining up in 2027.
Which Siberia suits you?
Your race.
At a glance.
Still hesitating about your first Sibérie? Take the test and find the format that suits you. From the night-time discovery run to the 100 Miles, compare the distance, elevation gain, aid stations and start time at a glance.
01
Friday 19 February
The 5 night trails
Five formats, one night: choose the distance that will let you discover Sibérie in the dark.
Swipe to view distances
02
35 to 160 kilometres
The 7 trails & ultras
Swipe to view distances
Samedi 20 février 2027 · Ultra Trail
Trail 35
35KM
D++1 400 m
- Aid stations
- 2 + finish
- Start
- 09:45
Samedi 20 février 2027 · Ultra Trail
Maratrail
42KM
D++1 700 m
- Aid stations
- 2 + finish
- Start
- 09:00
Samedi 20 février 2027 · Ultra Trail
Ultra 52
52KM
D++1 800 m
- Aid stations
- 3 + finish
- Start
- 08:15
Samedi 20 février 2027 · Ultra Trail
Ultra 75
75KM
D++2 500 m
- Aid stations
- 5 + finish
- Start
- 07:30
Samedi 20 février 2027 · Ultra Trail
Ultra 100
100KM
D++3 300 m
- Aid stations
- 6 + finish
- Start
- 05:00
Samedi 20 février 2027 · Ultra Trail
Ultra 125
125KM
D++3 900 m
- Aid stations
- 6 + finish
- Start
- 03:30
Vendredi 19 février 2027 · Ultra TrailFlagship distance
The Beast
160KM
D++5 300 m
- Aid stations
- 8 + finish
- Start
- 22:30
03
Saturday 20 February · Free
Mini Sibérie & Sibérie Kids
Two age-appropriate formats, free but requiring registration, to experience your first real finish line.
The two-day challenge
Friday + Saturday.
Become Ultra Crazy.
!Three progressive challenges to chain together the night race and an Ultra!
15 km+35 km
Ultra Crazy 50
50 kmCumulative elevation gain2 100 m
The first level to discover what it is like to combine two races in the same weekend.
19 km+52 km
Ultra Crazy 70
71 kmCumulative elevation gain2 700 m
A demanding night race, followed by a 52 km long trail on Saturday.
25 km+75 km
Ultra Crazy 100
100 kmCumulative elevation gain3 600 m
One hundred kilometres in total and two finish lines for a no-compromise weekend.
25 km+100 km
Ultra Crazy Ultimate 125
The signature format: the longest night race, followed by the 100 km the next day.
125 km
Cumulative elevation gain4 400 m
The weekend
Two days.
One challenge.
The times already announced are displayed for each race.
Friday 19 February
16:00–19:00
Bib number collection
Night races & ultras · Collège de Burnot - Route de Floreffe - 5170 PROFONDEVILLE
Friday 19 February
19:00
Night start 25km
Friday 19 February
22h30
Ultra 100MILES - THE BEAST start
Saturday 20 February
10:10
Mini Sibérie & Sibérie Kids
1 km and 1,8 km · registration required.
RacePocket
Coming to TDLS 2027
Your Sibérie.
In your pocket.
Goodbye PDF athlete guides. Say hello to an interactive guide, always close at hand. RacePocket will be available for the Trail de la Sibérie 2027.
Courses, GPX & aid stations
Explore your course, download the GPX and locate aid stations directly in the app.
Your entry & race info
Find your entry, schedules and all the information you need for your race in one place.
Live tracking
With live tracking, friends and family will be able to follow your progress on supported distances.
Your passage times
Estimate your total time and when you will reach each aid station to plan your race.
You run. They’re there at the right time.
Your estimated passage time provides the first reference point. Live tracking and actual recorded race times then complete the picture. Your supporters can find you in the right place, at the right time, and cheer you on at the top of their lungs!
Everything you need to prepare for your Sibérie.
Schedule, access, bib pickup and mandatory gear.
Frequently asked questions
Before you
set off.
Another question? The organising team will answer you directly.
01When do registrations open?+
Registrations open on 1 October 2026. The buttons on the website will then be linked to the official ticketing platform.
02Where do the starts take place?+
The main site is located in Profondeville in the province of Namur. The starts take place at Collège de Burnot, Route de Floreffe 26, 5170 PROFONDEVILLE
03When will the GPX routes be available?+
The official tracks will only be published after their final approval by the organisers.
04Can I take part without ultra experience?+
Yes: the formats start at 6 km. Choose a distance suited to your experience and consult the regulations before registering.
05Can I take part in the Trail de la Sibérie with my dog in canicross?+
Yes, of course! Dogs are very welcome to share the adventure with you in canicross. Please keep them on a lead throughout the route and ensure that other participants are respected.
06Is a medical certificate required to take part?+
A medical certificate is required only for the 100 miles. It must be submitted no later than 15 days before the event. No medical certificate is required for the other distances.
Behind every runner
Sibérie needs its team
its team.
Welcome desk, aid stations, course, course marking or logistics: discover the different roles and join the 2027 adventure.
By our side
They bring Sibérie to life
Sibérie to life.
Dedicated partners who make the adventure possible, on the trails and beyond.
Major partners
Official partners
Institutional & local partners
19 & 20 February 2027
Your Sibérie
starts here.
Ready to leave your mark?