Photo: Francisco Jesús Ayus (CC BY-SA 3.0), Wikimedia Commons (opens in a new tab) / Source (opens in a new tab)Cabezón de la Sal
Los 10.000 del Soplao
Saturday, 22 May 2027
Ultramaratón 110K
110km D+ 5600m
Ultramaratón 75K
75km D+ 3350m
Maratón 40K
40.4km D+ 1600m
Speed Trail 21K
21.2km D+ 844m
Race data
Terrain
Ultra Trail
Difficulty
Advanced
Distance
4 modalities
Ultramaratón 110K
- Distance
- 110 km
- Elevation Gain
- D+ 5600m
- Max Time
- -
Ultramaratón 75K
- Distance
- 75 km
- Elevation Gain
- D+ 3350m
- Max Time
- -
Maratón 40K
- Distance
- 40.4 km
- Elevation Gain
- D+ 1600m
- Max Time
- -
Speed Trail 21K
- Distance
- 21.2 km
- Elevation Gain
- D+ 844m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Ultramaratón 110K | 110 km | D+ 5600m | - | - |
| Ultramaratón 75K | 75 km | D+ 3350m | - | - |
| Maratón 40K | 40.4 km | D+ 1600m | - | - |
| Speed Trail 21K | 21.2 km | D+ 844m | - | - |
Will your watch battery last the ~27 h of Los 10.000 del Soplao?Worked out for the longest course (110 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchYour checklist for Los 10.000 del Soplao
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 6 ready
GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Polar Pacer Pro
Ultra-light: just 41 g
Downside: No multi-band GPS
Gear
Powerful headlamp with spare batteries
Done, you already have it
View on Amazon →(opens in a new tab)
Hoka Speedgoat 7
Max Hoka cushioning: protects your legs over long distances
Downside: High stack: less stable for those who want more ground feel
Nutrition
Gels every 40-45 minutes on long efforts
Done, you already have it
View on Amazon →(opens in a new tab)
Maurten Gel 100
Tecnología de hidrogel: excelente tolerancia gástrica
Downside: Precio elevado respecto a otros geles
Sun Protection
SPF50 sweat-resistant cream applied 20 minutes before the start
Done, you already have it
View on Amazon →(opens in a new tab)
ISDIN Fotoprotector Fusion Water SPF 50+
Ultralight texture, feels invisible on skin
Downside: Small format (50 ml), may run short on ultras
Body Care
Anti-chafe balm on underarms, thighs and feet
Done, you already have it
View on Amazon →(opens in a new tab)
BodyGlide Original Anti-Chafe Balm
Easy-to-apply stick format, even with sweaty hands
Downside: Higher price than traditional petroleum jelly
Car Rental
Book early for race weekend
Done, you already have it
View on Amazon →(opens in a new tab)
DRIVALIA Alquiler de vehículos por Suscripción CarCloud Country Plus
Trip logistics
Registration, travel and insurance: what you should have sorted before race day.
Affiliate links: if you buy, we earn a commission at no extra cost to you.
Gear up for Los 10.000 del Soplao
Buying guides with the best value for money, picked for this kind of terrain.
Swipe to see all 4 comparisons
Historical weather
What to wear at 15 °C: guide and kit →
Typical weather for the race date (10-year average)
Temperature
11°C – 19°C
Average 15°C
Rain
37%
3.1 mm avg
Wind
16 km/h
max. average
Sunshine hours
11h
daily average
Gear recommendations
Bring a waterproof jacket (37% chance of rain)
Asics
Asics Gel-Trabuco 14 GTX
A best-selling beginner trail shoe: GEL cushioning, good stability and a waterproof GORE-TEX membrane. Versatile and reliable for training on mixed terrain in any weather.
Berghaus
Berghaus Paclite 2.0 GTX
Waterproof jacket with a Gore-Tex Paclite membrane (around 330 g). Fully waterproof with taped seams, fixed adjustable hood, storm flap behind the zip and cuff adjustment. Packs down small in a vest. Heavier than a pure running hardshell, but it meets the waterproof-breathable membrane requirement in race rules and is the affordable route into Gore-Tex.
Brooks
Brooks Cascadia 20 GTX
The Cascadia 20 with a GORE-TEX membrane: stability and protection for rocky mountain terrain, keeping the foot dry on cold, rainy days.
Gore Wear
Gore Wear C5 GORE-TEX Glove
Glove with a fully waterproof, windproof GORE-TEX membrane and light insulation. The pick for running in snow, sleet or heavy rain while keeping your hand dry.
Gore Wear
Gore Wear M GORE-TEX Thermo Glove
Warmer variant of the Gore Wear C5 GORE-TEX: the same fully waterproof, windproof membrane, with extra thermal lining for intense cold on top of snow or rain. The pick when the problem isn't just water, but water AND hard cold at once.
Gore Wear
Gore Wear R7 GTX Shakedry
Chubasquero Gore-Tex Shakedry ultraligero (110 g). Impermeabilidad total sin membrana interior, altamente transpirable. El referente para corredores de montaña.
Nike
Nike Pegasus Trail 5 GORE-TEX
The best-selling gateway trail shoe: comfortable, cushioned and versatile for moving from road to trail. Waterproof GORE-TEX version, perfect for beginners and easy runs on mixed terrain.
Salomon
Salomon Bonatti Pro Waterproof Glove
Lightweight waterproof glove built for running, not just standing still in the snow: a waterproof membrane with more dexterity and less bulk than a thick membrane glove, for sustained rain without giving up handling gels or poles.
Salomon
Salomon Bonatti WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
Salomon
Salomon Speedcross 6 GTX
The Speedcross 6 with a GORE-TEX membrane: the same aggressive 5 mm lugs for mud and soft ground, now waterproof for winter, rain and snow.
Sealskinz
Sealskinz Waterproof Lightweight Glove
Lightweight waterproof glove from a brand that specializes in outdoor sport waterproofing. A solid middle ground between a thin windproof glove and a thick membrane glove: genuinely waterproof without the bulk or price of the Gore C5.
TRIWONDER
TRIWONDER Polainas Impermeables Trail
Waterproof, breathable low gaiters for trail running, hiking and mountain use. Under-shoe strap and adjustable elastic band. A budget-friendly alternative to premium technical brand gaiters.
Forecast for 22 May
Weather forecast from Open-Meteo (may change until race day)
Los 10.000 del Soplao
Los 10.000 del Soplao is one of the great sporting events of Cantabria and one of the oldest in the north. It starts in Cabezón de la Sal and combines foot and bike categories (MTB, gravel and electric). Its name refers to the El Soplao cave, one of Spain’s most spectacular caverns. The 2027 edition is planned for 22 May.
Four races on foot
The 110K Ultra adds about 5,600 m D+, the 75K 3,350 m D+, the 40.4K Marathon 1,600 m D+ and the 21.2K Speed Trail 844 m D+. The ultras start on Friday night and the rest on Saturday at 8:00.
Cantabrian weather
In May rain, mud and fog are likely. A windproof, a waterproof and lugged shoes solve most problems.
Cantabria beyond the race
Comillas, Santillana del Mar and the El Soplao cave are must-sees on your trip.
If you are combining your trip with other races nearby, take a look at the races in Cantabria and plan your season with the planner.
360Complete Pack
Los 10.000 del Soplao 2027 registration
RegistrationRegistration for 2026 opened in September of the previous year with rising rates: registering early is cheaper.
Tips
- •Four races on foot: Ultra 110K, Ultra 75K, Marathon 40K and 21K
- •Rates from €45 to €50 in the 2026 edition (reference)
- •Adapted routes and bike categories are also available
Where to stay for Los 10.000 del Soplao
AccommodationCabezón de la Sal is in western Cantabria, 10 km from Comillas and 30 km from Santillana del Mar and the coast.
Tips
- •Comillas, Santillana del Mar and San Vicente de la Barquera
- •Rural houses in the Nansa and Saja valleys
- •Long weekend in May: book early
Gear for Los 10.000 del Soplao
GearLots of climbing, mud and changeable Atlantic weather (rain and fog in May). The ultra starts at 23:00 on Friday, so a headlamp and thermal layer are essential.
Tips
- •Powerful headlamp with spare batteries
- •Shoes with grip for mud and grass
- •Waterproof jacket and poles for the ultra
Choosing trekking poles? Read our guide: Best trail running poles
See our complete buying guide: 5 foldable poles compared and tiered for trail running.
Which shoes for Los 10.000 del Soplao?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Los 10.000 del Soplao?
Which watch has the battery to last based on your estimated finish time
Best Trail Running Hydration Vests 2026: Comparison and Buying Guide
Best trail running hydration vests 2026: 12 vests and packs compared. How many litres you need by distance, soft flasks vs reservoir, and fit.
Strength Training Gear for Trail Running at Home 2026: Comparison and Buying Guide
Comparison of the best strength training gear for trail runners at home: dumbbells, resistance bands, kettlebell, TRX, weight bench and foam roller, with a 3-day-a-week routine.
Best GPS Watches with Offline Maps 2026: Value Comparison
The best GPS watches with offline maps in 2026, ranked by value: Amazfit T-Rex 3, Suunto Race 2, Garmin Forerunner 570, Instinct 3 AMOLED, Coros Apex 2 Pro, Suunto Vertical 2 and Garmin Fenix 8. Maps vs breadcrumbs, the cheapest watch with maps and which to choose for your use.
Nutrition for Los 10.000 del Soplao
NutritionOn the longest course (110 km) fuelling makes the difference. Combine gels, salts and something solid, and test it all on long runs before race day.
Tips
- •Gels every 40-45 minutes on long efforts
- •Salts or isotonic drink if it is hot or you sweat a lot
- •Carry your own reserve: do not rely only on aid stations
Getting to Cabezón de la Sal
TransportCabezón de la Sal is 50 km from Santander.
Tips
- •Santander airport (SDR) at 55 km
- •A-8 Cantabrian motorway, exit Cabezón de la Sal
- •The ultra starts at night: plan your return with margin
Car rental for Los 10.000 del Soplao
Car RentalA car gives you the freedom to reach Cabezón de la Sal and move around the area before and after the race.
Tips
- •Book early for race weekend
- •Compare airport or station pick-up versus city pick-up
Sports insurance for Los 10.000 del Soplao
InsuranceA mountain race with climbing and technical terrain: a federation licence or day insurance with rescue cover is advisable.
Tips
- •Federation licence or day insurance as required by the race rules
- •Rescue cover recommended on mountain terrain
- •If you travel from abroad, travel insurance covering sports
Sun protection for Los 10.000 del Soplao
Sun ProtectionSolar radiation is strong on exposed sections. A sweat-resistant sunscreen and lip protection prevent burns.
Tips
- •SPF50 sweat-resistant cream applied 20 minutes before the start
- •Protect lips, ears and neck
- •Reapply on races longer than 4 hours
Best Sunscreen for Runners 2026: 7 Sweat-Proof SPF 50 Picks
Which sunscreen survives a sweaty long run? We compared 7 SPF 50 sweat-proof picks — creams, sticks and a lip balm — on heat, altitude UV and sweat resistance. See the winner.
Body care for Los 10.000 del Soplao
Body CareHours of running punish feet and skin. Anti-chafe, blister plasters and good recovery make the difference the next day.
Tips
- •Anti-chafe balm on underarms, thighs and feet
- •Blister plasters in your pack
- •Recover with compression socks and a massage afterwards
Frequently Asked Questions
- When is Los 10.000 del Soplao 2027?
- The 2027 edition is planned for Saturday 22 May. In 2026 it was on 22 and 23 May, with the ultra starting on Friday at 23:00. Confirm the date on the official website.
- What distances on foot does it have?
- Ultra 110K (5,600 m D+) and 75K (3,350 m D+), Marathon 40.4K (1,600 m D+) and Speed Trail 21.2K (844 m D+). There are also non-competitive walking routes and bike categories.
- Where is the start?
- In Cabezón de la Sal (Cantabria).
- How much does it cost?
- In 2026 prices ranged from €45 with T-shirt (early registration) to €50. Check the current rate on the website.
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