TRAIL70K50K35KUTMB World Series
Bison Ultra-Trail
Supraśl, PolandChoose the distanceTap a distance: the course, fees, times and rules below update for that race.
Hilly
At a glance
Bison Ultra-Trail 2027 takes place in october 2027 (exact day to be confirmed) in Supraśl, Poland. Distances: 100 km, 70 km, 50 km, 35 km, 16 km.
- Date
- October 2027 · Date to be confirmed
- Location
- Supraśl, Poland
- Distances
- 100 km · Competitive
- 70 km · Competitive
- 50 km · Competitive
- 35 km · Competitive
- 16 km · Competitive
- Official website
- bisonultratrail.pl ↗
- Series
- UTMB World Series
- Status
- To be confirmed
Last updated: 20 October 2026
Where it is
Supraśl · PolandApproximate location: centre of Supraśl. The exact start point is on the official website.
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