Bieler Lauftage
About This Race
The famous Biel/Bienne Running Days featuring the legendary 100km ultramarathon, known as the night of nights. One of the most prestigious 100km races in Europe, held overnight from Friday to Saturday in early June. A must-do for ultra runners.
The Course
Night ultramarathon through Swiss Mittelland countryside between Biel and Kirchberg
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Race Details
Terrain
Road
Elevation
Rolling
Participants
8,000 participants
Distances
100K, Half Marathon, 10K
What to Expect
The legendary night of nights - an overnight 100km ultramarathon through the Swiss countryside. One of the most iconic and historic ultra races in Europe since 1959.
Highlights
Race Information
Cutoff Time
18 hours
Typical Weather
Mild early summer, 10-22C, pleasant night temperatures
Established
1959
Tags
Frequently Asked Questions
Quick Info
- June 5-6, 2026
- Biel/Bienne · Switzerland
- Road course
- Rolling elevation
- 8,000 participants
Verified event information
- Last verified 2 days ago
- Data sourced from official website