Events/Snowbound in the Underdown

Snowbound in the Underdown 24 km

MTBLaps
DateExpected
Mid February 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Prairie Dells Recreation Area / Prairie Dells Trailhead, Merrill, WI 54452
Merrill, Lincoln County
Countdown
February

The middle option: 15 miles of groomed snow on a fat bike, split into two timed laps. Enough to feel like a proper race, not a slog.

Key facts
01Fat bikes only: tires at least 3.5 inches wide for the groomed trails
02Two timed laps make up the course
Create a free training plan for the Snowbound in the Underdown 24 km
7-day free trial, no card required
Create my plan
The course

One lap, on repeat

Merrill · one lap
Distance24km
Start · finishOne lap · elevation
0 kmDrag map to rotate26.6 km
Weather

Mid-February, Merrill

-3°CTypical high
-13°CTypical low
-34°CColdest in 20 years
25%Days with rain

Highs around -3°C and lows around -13°C, but it has dropped to -34°C. Rain on 25% 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
OrganiserIRONBULL - TEAM SCHOTZ
Running since2022
Training

Training for the Snowbound in the Underdown 24 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.

GarminWahooPolarHammerheadIntervals.icu
What a Snowbound in the Underdown 24 km plan targets
Typical sessions
24 km
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
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 Snowbound in the Underdown 24 km plan.
7-day free trial, no card required.
Start my plan