Serra de Tramuntana (SDT)
A 137K challenge that covers the Serra de Tramuntana declared a World Heritage Site by UNESCO
Race Category
Running Stones
Finals Access
Distance
137 KM
Elevation Gain
5200 M+
Start Date
Friday 31st October 2025
Race Start
ESTELLENCS - 22:00
Max Allowed Race Time
30 Hours
Pure essence of the Tramuntana Mountains
137 km | 5,200 m+ | 4 Running Stones | Qualifying for the UTMB® by HOKA UTMB Mont-Blanc
Get ready for an adventure only for the brave. The SDT is much more than an ultra-marathon: it is a journey through the soul of Mallorca. A route of 137 km and 5,200 m of positive height gain that will take you from the beautiful village of Estellencs along the Camí des Correu to Esporles. We will passs through Valldemossa, Bunyola, Orient, Alaró, Fornalutx... villages that evoke history and that will mark your path as you cross the magical Serra de Tramuntana, declared a World Heritage Site by UNESCO.
You will pass through emblematic places such as Tossals Verds, the area around the Lluc Sanctuary and the imposing Cúber reservoir.
From the highest point, you will be able to contemplate Puig Major, the roof of Mallorca, and in other sections you will lose yourself among lush holm oak forests, cobbled paths and ancient dry stone walls that have shaped the landscape for centuries. You will enter a unique natural and cultural environment, where the sea, cliffs, mountains and villages with soul will accompany you kilometre by kilometre, to finally reach Port de Sóller.
Completing this race will not only give you an unforgettable experience, but you will also earn 4 Running Stones for the UTMB® World Series Finals draw. In addition, the first three men and women in the overall ranking, together with those who qualify by their UTMB Score®, will gain direct access to the UTMB® of HOKA UTMB Mont-Blanc, the most important UTMB® final in the world.
IMPORTANT:
In accordance with the race regulations and the conditions of the environmental permits, the routes may undergo changes, or be shortened, due to weather warnings or the state of the terrain.
A large part of the route crosses private properties, access to which is only permitted during the race with the corresponding permits. Always respect private property and consult the restrictions if you are going to train in the area. Before setting off on your training run, you must inform yourself of these restrictions and comply with them.
Athletes must carry the mandatory equipment at all times during the race and be prepared for random controls along the course. If they are missing any element, they will receive a time penalty or disqualification.
- Closed shoe suitable for trail running.
- Backpack or similar intended to transport the mandatory material during the race.
- Mobile phone (smartphone is MANDATORY): the runner must be available and answer the phone at any time before, during and after the race:
- Mobile phone that allows its use in Spain (include the organization's security numbers in your contacts, have the phone turned on, do not hide the number, and do not forget to leave with the battery charged).
- Keep the phone on, airplane mode is prohibited and may be penalized.
- Livetrail application installed and activated.
- An external battery is recommended.
- Personal glass of at least 15cl (drums or containers with lids not accepted).
- Water reserve of 1.5l minimum. At the exit from some aid stations it will be mandatory to leave with 1.5l of drink, depending on the section to be covered or the weather conditions.
- 2 fronts in good working order with spare batteries for both fronts. Recommendation: 200 lumens or more for the main front.
- Survival bag/thermal bivouac.
- Whistle.
- Food reserve. Recommendation: 800kcal (2gels + 2 energy bars).
- Jacket with a hood that can withstand bad weather in the mountains and made with a waterproof membrane of at least 10,000 mm water column and breathable (recommended RET less than 13). The jacket must necessarily have an integrated or attached hood with a system originally provided by the manufacturer. The seams must be heat sealed. The jacket must not have parts made of a non-waterproof fabric, only the vents provided by the manufacturer (under the arms, on the back) and as long as they do not obviously alter the waterproofing, are accepted. It is the runner's responsibility to judge, according to these criteria, whether their jacket adapts to the regulations and, therefore, to bad weather in the mountains. At checkpoints, the judgment of the person responsible for the control or the commissioner will prevail.
- Long-legged running pants or tights or a combination of tights and socks that completely cover the leg.
- Waterproof trouser cover.
- Cap or bandana or piece of clothing that covers the head.
- Warm and waterproof gloves.
- Additional second thermal layer: a long-sleeved second thermal layer garment (cotton excluded) weighing at least 180g (men, size M) Or the combination of a long-sleeved thermal base layer (first or second layer, excluding cotton) weighing at least 110g (men, size M) and a resistant windbreaker* with water-repellent protection (DWR protection).
.* The windbreaker is not a substitute for a waterproof jacket with a hood, and vice versa.
All garments must be the participant's size and without modifications after leaving the factory. All material will be transported in a backpack or similar that cannot be changed during the tour. All material will be properly packaged to prevent it from getting wet inside the backpack in rainy conditions.
Other recommended material (non-exhaustive list):
- Essential replacement thermal clothing in case of cold or rain or in case of injury.
- Poles. If you carry poles, soft tip or tip protection and spare protection is mandatory.
- Water purification tablets or drums with filter.
- Plates and eating utensils. At the aid stations, no material is provided to be able to eat.
- Vaseline or anti-chafing cream.
- Solar protection.
- GPS clock.
- Adhesive elastic band that allows you to make a bandage or strapping (min. 100 cm x 6 cm).
- Knife or scissors with which to cut the elastic adhesive tape.
POLES
ATTENTION If you carry poles, a soft tip or tip protection and replacement protections are mandatory.
The environmental authorities may forbid the use of poles on the entire route if it has rained during the previous days (in accordance with the permits granted by Paratge Serra de Tramuntana). If this circumstance arise we will be duly informed.
Any participant who decides to carry poles must carry them throughout the race. It is prohibited to leave without poles and obtain and use ones during the race. The use of canes may be prohibited in certain areas of the route for safety or environmental reasons. In these cases it will be indicated by specific signs on the route. Canes will not be accepted in the life bags delivered by the organization.
MUSIC
Listening to music is permitted only using headphones, as long as it is safe to do so. Headphones MUST be removed when crossing any road, as well as when approaching and while at any checkpoint, and when approaching and passing any member of the Safety Team.
At the race-pack collection, each participant receives two 30-liter bag. After filling it with the items of their choice and closing it, they can drop them in a place close to the starting line. One bag is taken by the organization to ALARÓ, the other one to LLUC. Upon arriving in those aid stations, runners will be able to collect the bag. When the runner leaves the aid station, the runner in person will have to deposit the bag in the area indicated for this purpose. The organization will return the bags PORT DE SÓLLER.
How to get your bags: The bags are returned to either the runner or a family member or friend, only upon presentation of the race-bib. The bags must be retrieved no later than 2 hours after the end of the race. The organization will take to Vielha the bags of runners who drop out, on condition that their withdrawal is registered. Because of logistical factors, the organization cannot guarantee that all bags are brought to Port de Sóller before the end of the race.
Only bags supplied by the organization will be transported*. Poles are not allowed in these bags. As the items in the bags are neither checked nor controlled, we will accept no claims on that matter. We recommend not to put any valuable items in the bags.
We recommend that you have spare clothes and hygiene products at the arrival areas.
*For logistics and environmental reasons, UTMB® World series events only accept the UTMB® World series spare bags that are distributed during the check-In. Those bags are reusable, so we ask the runners who already have received one of those bags to reuse it each time they take part in a UTMB® World Series event.
Pacers are not allowed to set the pace in the race.
Assistance is only permitted at the following checkpoints:
- Aid station: ALARÓ
- Aid point: LLUC
Assistance is forbidden at the other refreshment posts, as well as at any other point along the route.
This assistance can only be given by a single person, with no specific material other than a bag with a maximum volume of 30 litres.
Assistance provided by a team of professionals, or any doctor or paramedic, is strictly forbidden.