Running
Marathon
50 km

Running
Marathon
50 km
Running
Half Marathon
29 km
Running
10K
10 km
North America’s premier cross-country ski marathon, offering multiple race distances on the iconic Birkie trail with year-round events and community.
On-course aid stations with beverages and snacks (not Pacemaker lines).
Pacers set target times per Start Wave shown on the 'Renntag für Laufende' page and indicated by Pacerflaggen; contact pace leads for segment time goals.
Monthly averages based on historical data (2000–present).
Last updated: Jun 6, 2026, 12:03:44 AM
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On your marks
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