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The San Silvestre is a 5 kilometre run listed under the adult (Heldu Maila) category, held in the Basque town of Lazkao on the last day of the year. It is a festive community run rather than a championship race, and full route and entry detail is published on the organiser's own event page.
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The race is scheduled for Thursday 31 December 2026, the traditional date for San Silvestre runs across Spain. The organiser's event page carries the confirmed date and start time.
San Silvestre runs are famously festive and many participants turn up in costume. There is no requirement to do so, and runners in normal kit are equally welcome.
Late December in the Basque Country can bring rain. The organiser decides whether the event goes ahead, and any change will be announced on their event page and social channels.
Entry fee not listed
Check the race's registration page for pricing.Beasain, Spain
Thursday, December 31, 2026
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