DateExpected
Mid August 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Tereny Rekreacyjne Błonia, Bielsko-Biała
Bielsko-Biała
Countdown
August
The crowd favourite, with 710 runners. 25 km and 1,530 m of climbing makes it a solid trail day that is hilly but not extreme.
Key facts
01Adults only: 18 or older under the published regulations
Create a free training plan for the Letni Bieg Zbója 25 km
7-day free trial, no card required
The course
The route
Bielsko-Biała
Distance25km
Total climb1,530m
StartElevation
0 kmDrag map to rotate25.6 km
Weather
Mid-August, Bielsko-Biała
26°CTypical high
14°CTypical low
7°CColdest in 20 years
41%Days with rain
Highs around 26°C and lows around 14°C, but it has dropped to 7°C. Rain on 41% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Dulski Daniel2:05:4411.9 km/h
02Miroszka Krzysztof2:08:5511.6 km/h
03Ciepiela Dominik2:10:1511.5 km/h
710
Finishers
4:02:09
Median time
6.2 km/h
Median speed
Overall · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Letni Bieg Zbója 25 km
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 Letni Bieg Zbója 25 km plan targets
Typical sessions
25 km with 1,530 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Hill reps and vert to prepare the climbs and descents
Back-to-back weekend runs for fatigue resistance
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
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Get your Letni Bieg Zbója 25 km plan.
7-day free trial, no card required.
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