DateExpected
Late May 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Autokemp Mostek, Mostek
Mostek, okres Trutnov
Countdown
May
400 km of gravel with 9,000 m of climbing, and nobody there to help you. You get 60 hours to ride it, so pacing and sleep matter as much as legs.
Key facts
01Unsupported: carry or find everything you need along the way
0260-hour cut-off for the full 400 km
Create a free training plan for the 400 Ultra
7-day free trial, no card required
The course
The route
Mostek
Distance400km
Total climb9,000m
StartElevation
0 kmDrag map to rotate345.9 km
Weather
Late-May, Mostek
18°CTypical high
8°CTypical low
0°CColdest in 20 years
52%Days with rain
Highs around 18°C and lows around 8°C, but it has dropped to 0°C. Rain on 52% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the 400 Ultra
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a 400 Ultra plan targets
Typical sessions
400 km with 9,000 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Sustained climbing repeats on real gradients
Group rides for drafting and bunch-riding skills
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your 400 Ultra plan.
7-day free trial, no card required.
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