Siero Trail 2027
Not announced yet. Estimated from the usual date pattern; check the official site before booking travel.
- Sunday 8 November 2026, 9:30, Pola de Siero
- 25 km to Cerro Gavio (707 m), solo or relay
- Km 13 cut-off at 2 h 05, finish at 3 h 35
- No cups at aid stations; headphones banned
The Trail Siero stays almost entirely inside the municipality of Siero, in central Asturias. It starts and finishes in the Plaza del Mercado of Pola de Siero. The 4th edition starts at 9:30 on Sunday 8 November 2026. It’s organised by Actitude Eventos with Siero’s municipal sports board, partly to showcase the rural side of the municipality.
The route
The long course leaves town on the PR AS-216 Camín de Careses through El Rebollal and Samartino, on quick, rolling farm tracks. After the Villanueva river and the lanes of Careses and Ordiales comes the steepest part, between Pico Castillo and Peña Careses, climbing a steep trail to La Rimada. Behind you are views over central Asturias. From the La Loma de Siero picnic area, a final push takes you to Cerro Gavio (Cimero), 707 m, the highest summit in Siero.
The way back is mostly downhill, through a pine wood on the PR AS-161 Senda Les Casuques, then a sharp descent around Pico Castiello and back along the outward route into town. The organisers call it an accessible, fast course with very little technical difficulty. The 25 km has 2,100 m of total elevation change, which works out at roughly +1,050 m of climbing.
Four ways to take part
| Distance | Price | Places | |
|---|---|---|---|
| Trail Siero | 25 km | €25 | 250 |
| Relay (2 runners) | 13 km up + 12 km down | €17 | 54 teams |
| Short trail | 11.5 km, 600 m total change | €16 | 300 |
| Andarines walk | 8.5 km | €10 | 50 |
In the relay, the first runner hands over the chip at La Loma de Siero, and a bus takes relay runners to and from the changeover. Runners without a mountain federation licence pay €3 for the day licence. Entries close on 2 November, and withdrawals before then are refunded at 80%.
Rules and cut-offs
- Cut-offs: long race at km 13 (second aid station) by 2 h 05, finish by 3 h 35. Short race and walk: 2 h 30.
- Aid: three stations on the long course (the first drinks only) plus the finish. No cups are provided, so carry your own.
- Semi-self-sufficient: bring some food and drink, and a warm layer if the weather changes. Poles aren’t recommended, and headphones are banned.
- Entry includes a personalised bib, chip, shirt, runner’s bag, photos, changing rooms and showers. The top three in the 25 km win €150, €100 and €50.
Children aged 5 to 14 can join Crece Trail Siero, a supervised, non-competitive session (€10, 30 places) that finishes together at the main race finish.
Where to stay
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Hotels and apartments around the race, with live prices for a 3-night race weekend: Fri 12 Nov → Mon 15 Nov. Change the dates on the map.
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