400 ULTRA 2026
Unsupported 400 km loop from Mostek. Carry everything yourself, no outside help.
400 Ultra 2026 400 km ran from 22 May 2026 to 24 May 2026, starting in Mostek, Czechia. The route is 400 km. Time limit: 60 h. Support: self-supported.
- Distance · 400 km
- 400km
Entry is handled by the organizer. Confirm places, prices and requirements before paying.
The 2027 edition is next: dates, entry and route →
This is a past edition. These facts describe 2026. They do not confirm a future occurrence or route.
2026 edition / 400 km
- Time limit
- 60hours
- End date
- 24 May 2026
- Support
- Self-supported
- Surface
- Gravel
Edition notes
- 60 hours to finish
Email updates
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2027 (400 km) starts on 21 May 2027. We’ll tell you if a published fact changes, and when it’s on course.
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- Changes to dates, route and fees, a day after the last edit
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Sources & checks
Last checked . Event details can still change.
Verified by the Hub, 9 Oct 2026. We compared this listing with its sources on that date. Not a recommendation.
Verification details
Still being verified
Climbing. Suggest a correction
Sources · 2
Organizer website
Source lists the 2027 400 km edition; start 2027-05-21; distance 400 km; climbing 9000 m; time limit 60 h.
Checked 15 Oct 2026
Open sourceSomething changed?
Suggest a correction → Are you the organizer? Confirm your race →Similar events
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