DateExpected
Late August 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Großsporthalle, Fellingshäuser Straße 66, 35444 Biebertal, Germany
Rodheim-Bieber, Landkreis Gießen
Countdown
August
The long one: 124 km on the mountain bike, three laps with a solid 2,600 m of climbing. Racing since 2007, and a proper day out for marathon riders.
Key facts
01Helmet required for all riders
02Under 18s need guardian consent
03German Championship ranking needs German citizenship and a UCI licence
Create a free training plan for the Dünsberg Bike & Gravel Marathon (Celtic Race) 124 km
7-day free trial, no card required
The course
One lap, on repeat
Rodheim-Bieber · one lap
Distance124km
Total climb2,610m
Start · finishOne lap · elevation
0 kmDrag map to rotate30.2 km
Weather
Late-August, Rodheim-Bieber
23°CTypical high
12°CTypical low
5°CColdest in 20 years
36%Days with rain
Highs around 23°C and lows around 12°C, but it has dropped to 5°C. Rain on 36% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserAuto- und Motorradclub Rodheim-Bieber e.V. (AMC) im DMV
Websiteduensberg-bike-marathon.de
Running since2007
Training
Training for the Dünsberg Bike & Gravel Marathon (Celtic Race) 124 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 Dünsberg Bike & Gravel Marathon (Celtic Race) 124 km plan targets
Typical sessions
124 km with 2,610 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
Terrain and skills practice specific to the course
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 Dünsberg Bike & Gravel Marathon (Celtic Race) 124 km plan.
7-day free trial, no card required.
Other races at Dünsberg Bike & Gravel Marathon (Celtic Race)
More events in August in Germany
TegelberglaufExpected Early August 2027 · Schwangau→Erzgebirgs-Bike-Marathon (EBM)Expected Early August 2027 · Seiffen/Erzgebirge→Erzgebirgs-Bike-MarathonExpected Early August 2027 · Seiffen/Erzgebirge→Holter Wald UltraSat, 7 Aug 2027 · Schloß Holte-Stukenbrock→Monschau MarathonSat, 7 Aug 2027 · Konzen→OttonenlaufExpected Early August 2027 · Starts: Stiege Bahnhof→
