Course
100K100 km
Bison Ultra 7070 km
Bison Ultra 5050 km
Bison Trail 3030 km
Bison Trail 1818 km
Bison Trail 1010 km
Key dates
- ★Race dayOctober 2027 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
Embark on an expedition to unknown lands, forget everything you've read or heard about them. You just need to come and be amazed.
Your next race, seen from above.
Save Bison Ultra Trail to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Save Bison Ultra Trail to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.