Photo: Organisation Sansilbestrail (opens in a new tab) / Source (opens in a new tab)Zubiri
Sansilbestrail
Saturday, 19 December 2026
When is Sansilbestrail 2026?
Saturday, 19 December 2026
Race date
Saturday, 19 December 2026
Zubiri
48
48 days until the race
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Add race dateExpected weather
4° – 10°
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💧
27%
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💨
19 km/h
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☀️
6h
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Race summary
Distance
20K
Elevation Gain
1,000m D+
Terrain
Mountain
Difficulty
Intermediate
Distances
| 20K | 20K | 1,000m D+ | – |
| 8K | 8K | 300m D+ | – |
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