Spaarnwoude Park Ultra2026
12.12.2026Velsen-Zuid (Netherlands)
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1 course · 4.6 km
1 course
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The race
A backyard ultra format where runners complete laps of 3.6 km or 4.6 km within 30 minutes each, continuing as long as they can for up to 10 hours.
Where to stay
Find a place to stay near Velsen-Zuid for the race.
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