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Nov 8, 2026 · Registration open
Registration
Prices, deadlines and direct registration link
Local guides
Race data
| Modality | Distance | Elevation Gain | ITRA | Max Time | Price |
|---|---|---|---|---|---|
| Trail Siero | 25 km | D+ 1050m | - | - | 25 EUR |
| Relay | 25 km | D+ 1050m | - | - | 17 EUR |
| Trail Corto | 11.5 km | D+ 300m | - | - | 16 EUR |
| Andarines | 8.5 km | D+ 200m | - | - | 10 EUR |
What you need
Salomon
Salomon Speedcross 6
226ERS
226ERS Isotonic Drink
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud City
How long will it take you?
Estimate your race time based on distance, elevation and your runner level.
Historical weather
Typical weather for the race date (10-year average)
Temperature
8°C – 15°C
Average 11°C
Rain
63%
5.8 mm avg
Wind
17 km/h
max. average
Sunshine hours
7h
daily average
Gear recommendations
Bring a waterproof jacket (63% 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.
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 WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
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.
Bring thermal layers (low of 8°C)
Buff
Buff Thermonet
Buff tubular térmico con tecnología Primaloft. Retiene el calor corporal, ultraligero y polivalente: gorro, braga, cinta. Ideal para alta montaña.
Odlo
Odlo Active Warm Eco
Camiseta térmica de manga larga con tejido reciclado y tratamiento antiolor. Regulación térmica activa, ideal como capa base en montaña.
Salomon
Salomon Cross Run Tight
Mallas largas de trail con tejido elástico y transpirable. Cintura ajustable, bolsillo trasero con cremallera. Protección contra el frío y la vegetación.
Salomon
Salomon Cross Warm Glove
Guantes térmicos de running con palma antideslizante y puntas táctiles. Ligeros, cálidos y compatibles con bastones.
Forecast for November 8
Real-time data from Open-Meteo
Trail Siero
Trail Siero has become one of the reference autumn events in central Asturias. Organized by Actitude Eventos together with the Siero Municipal Sports Board, the race reaches its fourth edition in 2026, starting and finishing at Pola de Siero’s Plaza Cubierta.
A route between town and hills
The main course (25K, 1,050m of climbing) leaves via Calle Marquesa de Canillejas towards the La Isla neighbourhood and the Feve station, before climbing to Cerro Gavio (707m), the highest point of the Siero municipality, with a final descent through pine forest back to the town centre. The category can also be run as a relay, split into two legs of 13K and 12K.
For those looking for a shorter distance, the Trail Corto (11.5K, 300m of climbing) covers a reduced version of the circuit, while the Andarines (8.5K) offer a non-competitive option to complete the course on foot, with a kids’ version (Crece Trail Siero) that turns the day into a family event.
An accessible race in central Asturias
Pola de Siero’s closeness to Oviedo and Gijón, both about 15-20 minutes away, makes this one of the most accessible races on the Asturian calendar, which explains its high turnout (up to 250 runners in the main distance, plus the short and relay categories).
Siero beyond the race
After the race, take the chance to explore Pola de Siero’s historic centre or rest at the nearby Parque de Vega Poja. Discover other races in the Asturias region and plan your visit with the race planner.
Mandatory Gear
According to the official race regulations
360Complete Pack
Trail Siero 2026 registration
InscripciónOrganized by Actitude Eventos with the Siero Municipal Sports Board. Registration through RockTheSport, open from June 30 until November 2, 2026 or until spots run out (maximum 250 in Trail Siero).
Browse all inscripciónTips
- •Choose between Trail Siero (25K), Relay, Trail Corto (11.5K) or Andarines (8.5K) depending on your level
- •Spots are limited: register early, especially for the relay category
Where to stay in Pola de Siero
AlojamientoPola de Siero has good accommodation options thanks to its closeness to Oviedo and Gijón.
Browse all alojamientoTips
- •Pola de Siero's town centre has hotels and guesthouses close to the start
- •Oviedo and Gijón, 15 minutes away, greatly widen the options if you prefer more choices
Gear for Trail Siero
MaterialA standard trail course with an initial urban stretch, the climb to Cerro Gavio and a final descent through pine forest.
Salomon
Salomon Speedcross 6
La zapatilla de trail más versátil de Salomon, ideal para terrenos técnicos y barro. Agarre excepcional con suela Contagrip y amortiguación EnergyCell+.
Asics
Asics Gel-Trabuco 14 GTX
Superventas de iniciación al trail: amortiguación GEL, buena estabilidad y membrana GORE-TEX impermeable. Polivalente y fiable para entrenar en terreno mixto con cualquier tiempo.
Tips
- •Versatile trail shoes, no need for maximum technical grip
- •For the Andarines category, comfortable hiking shoes are enough
Which shoes for Trail Siero?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Trail Siero?
Which watch has the battery to last based on your estimated finish time
Nutrition for Trail Siero
NutriciónTrail Siero (25K, 1,050m of climbing) requires hydration and some energy intake for several hours of effort.
226ERS
226ERS Isotonic Drink
Bebida isotónica en polvo de la marca española 226ERS. Aporta carbohidratos, electrolitos y minerales para mantener la hidratación durante el ejercicio. Fórmula con amilopectina para absorción rápida sin molestias digestivas.
Science in Sport
SiS GO Isotonic Energy Gel
Gel isotónico que no necesita agua para su consumo. 22g de carbohidratos por sobre. Formulación ligera y fácil de digerir durante el ejercicio intenso. Muy popular en ciclismo y trail running.
Tips
- •A couple of gels are usually enough to complete the 25K
How to get to Pola de Siero
TransportePola de Siero is in central Asturias, very well connected to Oviedo and Gijón.
Browse all transporteTips
- •About 15 minutes from Oviedo via the AS-II
- •About 20 minutes from Gijón via the AS-II
Car rental for Trail Siero
Alquiler de vehículoA car makes it easy to reach Pola de Siero from anywhere in central Asturias.
Browse all alquiler de vehículoTips
- •Pick up the car in Oviedo or Gijón, both just 15-20 minutes away
Sports insurance for Trail Siero
SeguroValid insurance is required to take the start.
Browse all seguroTips
- •Federation licence or day insurance mandatory
Sun protection for Trail Siero
Protección solarThe course combines urban stretches with hills and pine forest.
Browse all protección solar
Tips
- •Apply sunscreen before the start, even in November
Body care for Trail Siero
Cuidado corporalA well-established, accessible race, also suitable for those starting out with medium distances.
Browse all cuidado corporal
Tips
- •A light buff is useful on the descent through the pine forest
Frequently Asked Questions
- When is Trail Siero 2026?
- Sunday, November 8, 2026, starting and finishing at Pola de Siero's Plaza Cubierta. Registration closes November 2 or once spots run out.
- What distances does Trail Siero offer?
- Four categories: Trail Siero (25K, also available as a relay of 13K+12K), Trail Corto (11.5K) and Andarines (8.5K, non-competitive).
- What is the highest point of the course?
- Cerro Gavio, at 707m, the highest point of the Siero municipality, followed by a final descent through pine forest.
- How do I get to Pola de Siero?
- Pola de Siero is in central Asturias, about 15 minutes from both Oviedo and Gijón.
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