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Kalkminelobet
≈ 29 May 2027 · Viborg, Denmark
Estimated date — the organiser has not announced the exact day yet
marathonminesforest
Distances
5K · 10K · 21.1K · 42K
Kalkmineløbet is one of Europe's most unusual races: part of the course runs underground through the lit galleries of the Mønsted limestone mines near Viborg, with tens of kilometres of tunnels. Inside it is a constant 8 °C, dim and echoing; outside are the hills and forests of central Jutland. Distances range from 5 km to the marathon, plus a long 53K. Viborg with its cathedral and lakes is nearby, and thousands of bats winter in the mines.
Course records
No course record data yet.
Weather in May
May is mild and pleasant for running.
Starter pack 2025
- bib with timing chip
- medal
- technical t-shirt
Standard starter pack.
Pacers & bib pickup
No pacers announced for this race.
Bib pickup
Viborg race expo
day before the race only
Bib pickup the day before.
Course map
Route not added yet
What’s nearby
Area guide in progress.
Dinner before the race
Carb-loading recommendation coming later.
After the finish
Water, fruit and snacks at the finish.
Registration link not in the base yet.
Registration status to be confirmed — check the organiser’s site