1. Organization

The non-profit association "Evotrail" bears full legal and operational responsibility for the organisation of the Ultra Trail des Sources), a running competition open to licensed and unlicensed runners.
This run uses an original route called "Ultra Tour des Sources® (UTDS®), created by the non-profit organization "Extratrail".

The organiser shall take out civil liability insurance for the duration of the event and remind competitors that it may be in their interest to take out a personal insurance policy covering personal injury to which they may be exposed as a result of sporting activities.

The organisation of the event is placed under the responsibility of a race director who will ensure the application of these rules.

2. Routes and races

The UTDS races subject to these rules:

Solo RaceD+ (meters) ITRA pointsStartFinishAge required
42 km12502La ChefnaTrois-Ponts18 years
80km23503SpaTrois-Ponts18 years
Team Race
80km23500SpaTrois-Ponts18 years

The measurement of the route (distances and elevations) was carried out using a GPS.

Details of the route (elevation changes, mapping, etc.) are available on the website:

The course can be modified by the organiser at any time, including the day of departure: security, weather conditions, authorisations to pass on private land…

The presence of the competitors at the pre-race briefing (15 minutes before the start) is mandatory.

2.1. Races

The Solo race is run by a competitor wearing a solo bib and covering 80 km.

The Team race is carried out by a minimum of 2 and maximum 4 riders wearing a Team bib running 80 km and this in the form of relays, it is up to the Team to determine the number of kilometres and relays to be carried out, only the bases of life will be the subject of the bib exchange.

3. Conditions of registration

Registration in the UTDS implies acceptance of these rules. A competitor's registration is only validated upon receipt of payment of the registration fee before the official closing date.

All registrants undertake to respect and validate these regulations. A competitor's entry is only validated after receipt of the required payment before the official closing date for entries.

Each competitor wishing to be timed and classified must send the organiser, at the latest when collecting his bib, a photocopy of a medical certificate of absence of contraindication to the practice of sport in competition dating back less than one year to the date of the competition.

No other document will be accepted to attest to the possession of the medical certificate.

When the bibs are removed, each competitor must be able to prove his identity and, where applicable, the identity of the competitor from whom he would remove the bib.

All commitments are personal. Any person who retrocedes his bib to a third party will be held liable in the event of an accident occurring or caused by the latter during the event. Any person with a race number acquired in violation of these rules will be disqualified. The organisation declines all responsibility in the event of an accident in this type of situation.

4. Safety and security

4.1. Physical capacity

Each competitor is aware of his or her physical and psychological abilities and limitations to enter the event in which he or she is entered. In the event of incapacity (physical, psychological) detected by a doctor, the person concerned must withdraw from the test.

Participants must be able to perform the test in semi-sufficient food (solid and liquid). Refreshment stations (solid, liquid, cold or hot) are put in place, they can be spaced a maximum of 22 km apart.
The preliminary study of the courses, available on the event site, is imperative.

Time barriers are applied at different points along the route: see table below.

Beyond the time barriers defined by the organisation, the participants concerned are declared "out of the race".

They will not be able to continue the event. A competitor declared out of the race or wishing to withdraw by his own choice from the competition must hand in his race number to the nearest supply station or base of life. The organisation will take charge of the participant's return upon arrival at the Warfaaz Sports Centre from a refreshment station or a living base, unless he/she decides to go there by his/her own means and under his/her own responsibility.

Any competitor wishing to withdraw or not taking the start after having withdrawn his race number must inform the organisation. Failure to inform the organisation of a withdrawal will result in research, the costs of which will be charged to the competitor concerned.

Competitors must pass through the supply areas, which also serve as a scoring area. Each bib must be scanned at all supply areas and bases of life.

Location, place or crossing point (municipality) km inter. km acc. D+ acc. Time Barrier (Fast) Time Barrier (Slow) STOP Refreshment stations (solid-liquid-warm)
Spa 0 0 0 08h00 08h00   Start
Jevoumont 20 20 679 09h30 12h00 12h00 Solid - Liquid
Chefna 20 40 1330 10h15 15h30 15h30 Solid - Liquid - Warm
Stoumont 22 62 2145 11h20 20h15 20h15 Solid - Liquid
Trois Ponts 18 78 2678 12h10 23h59   Solid - Liquid - Warm

Base of lifeTime Barriers

4.2. Road risk

The route is mainly on roads and paths. However, when crossing villages or roads, traffic is not neutralized and participants are not given priority. Prudent and responsible behaviour, in accordance with the rules of the Highway Traffic Act, is required:

  • do not cross a road in a bend, do not cross a road diagonally,
  • in single file at the edge of the road,
  • wait until the roadway is clear of vehicles before crossing it.

4.3. Accident / injury / illness

Each runner must assist a person in difficulty or in danger and prevent rescue services.

If you witness an accident or illness:

  • keep your cool.
  • if the accident / illness occurred on a public road: protect the site, indicate the presence of the accident to motorists, call on other participants or spectators if necessary.
  • protect the victim from the cold, for example: survival blanket, windproof jacket,…
  • alert the emergency services using the emergency number on your bib: be as precise as possible about your location (GPS position if known, last point seen, route…) or use application 112.
  • if you are a first-aid worker: assist the victim.

Never leave a person in difficulty alone, even if that person asks you to leave. Always wait for the decision of the rescuers or doctor.

If you are injured and alone on the course (minor injury: sprain or fall):

  • protect yourself from the sun, cold (survival blanket, windproof…) and/or heat.
  • notify the emergency services and be as precise as possible in your location.
  • if you can walk: progress in the direction of the race and inform the emergency services of your progress.

If you've had a sickness, don't go back!

Protect yourself from cold and/or heat. In any case: inform the first-aid attendants and/or the doctor of the event (telephone numbers on your race number).

If you are in an area not covered by the telephone network, notify the emergency services (number 112 if there is a medical emergency) and ask them to contact us to coordinate the emergency measures.

4.4. Material and equipment

The competitor undertakes to possess the required equipment and to present it at the request of the organiser during the entire event.

The bib must be worn and visible at all times.

Individual equipment required: => For the 80K race <=

  • Charged mobile phone (unmasked number) with telephone numbers of the organisation and registered emergency services (112) (these numbers will be communicated before the start of the event).
  • Water reserve (1.5 L) and food reserve sufficient to allow autonomy adapted to the route (see location and distance of supply points), including over very short distances.
  • GPS with traces of the recorded courses or copies of the maps (final versions can be downloaded from the event site at the latest at d-7).
  • survival blanket (140cm x 200cm) in its original packaging.
  • whistle.
  • clothing adapted to weather conditions: sun, cold, rain, snow…
  • personal cup.
  • for the night: headlamp or head/belly/pectoral lamp and two charged batteries.
  • sticks are allowed.

5. Tarifs

The price fixed by bib at the solo or team event (80K) is 65€ + any special requests.

The price fixed by bib at the solo event (42K) is 35€ + any special requests.

6. Cancellation

General conditions of participation

Each entry is considered non-transferable and final and implies full acceptance of the rules.

No refund will be made under any circumstances. No transfer of registration will be allowed, under any circumstances.

All commitments are personal and no transfer of registration is permitted for any reason whatsoever.

All entries are final and non-transferable, non-refundable, non-transferable.

7. Privacy policy

Any competitor expressly waives the right to use the image during the event, just as he waives any recourse against the organiser for the use made of his image.

8. Sanctions


  • Disqualification (decision of the race director).
  • Disposal or abandonment of garbage.
  • Failure to assist a person in difficulty.
  • Non-respect of people: runners, organization, security, hikers….
  • No bib or number not visible or hidden.
  • Outdoor refuelling outside the areas provided for this purpose.
  • Change or falsification of bibs.
  • Refusal to submit to a medical examination.
  • Absence of part of the mandatory equipment or refusal to check the equipment.
  • Dangerous or irresponsible behaviour on roads open to traffic or when crossing roads.
  • Cheats: using transport, sharing bibs, cutting routes,…

9. Complaints and disputes

Any complaint must be made in writing (email or letter) to the organizer no later than 24 hours after the official closing of the event scheduled for Sunday at 19.00.

10. Miscellaneous

The accompaniment of a competitor by an ATV or motorized vehicle is strictly prohibited. The route is on a route frequented by hikers (adults and children).

External assistance is allowed in the supply areas set up by the organisation.

The crossing of hedges, fences, property walls, outside the passages provided for this purpose, is prohibited.

Participants and the public will ensure that the environment is respected by applying at least the following measures:

  • animals (dogs) kept on a leash
  • respect for the tranquility of wildlife, including amphibians and insects
  • respect for wild flora (no picking or taking of flowers or plants)
  • circulation of motorized vehicles prohibited on roads and paths
  • campfires and camping / bivouacs strictly prohibited
  • throwing and abandoning of strictly prohibited rubbish
  • compliance with road signs (application highway code)
  • respect of forest signage.
  • waste sorting in the supply areas.

Specific environmental measures imposed by the administrative authority may also be communicated to competitors on the day of the event.

11. Refuelling

3 refreshments will be offered on the whole course plus one on arrival, please refer to the table (locality, place or point of passage visible on the table).

12. Bib pick-up

  • The bibs will be collected on 9 August 2024 from 17.00 to 21.00 at the Trois-Ponts Cultural Centre (Traverse street, 4980 Trois-Ponts - Belgium).
  • The bibs will be collected on 10 August 2024 from 06.00 to 09.00 at the Trois-Ponts Cultural Centre (Traverse street, 4980 Trois-Ponts - Belgium).

13. Beaconing

The UTDS has permanent marking (EXTRATRAIL beacon stamped with a magenta pink UTDS® logo). A reinforcement by day with ribbon, marking on the ground and at night with reflective tabs will be applied. Important information will be provided at the pre-race briefing. Possibility to find the visuals of the markup on the site:

Downloading the GPX track and installing it on a GPS watch or a suitable mobile application is essential.